Prosecutors allege dozens of parents, test administrators and college coaches were involved in a widespread effort to rig the college admissions process for children whose parents were willing to pay bribes and now those parents have entered in pleas. The indictments filed in the United States District Court for the District of Massachusetts include hundreds of pages of allegations, implicating more than 50 people in two sets of schemes: standardized test cheating and college acceptance bribery.

Below is a summary compiled by CBS News of the allegations against and pleas made by each person — including some prominent business people and famous actresses Felicity Huffman and Lori Loughlin.

The indictment repeatedly refers to two confidential witnesses (CW-1 and CW-2) who were implicated in the scheme. One of them, referred to as CW-1, operated a college admissions business called The Key, as well as its nonprofit arm, The Key Worldwide Foundation. On Tuesday, March 12, the founder of The Key, William Singer, entered a guilty plea to racketeering conspiracy and money laundering charges.

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The second, CW-2, is described in the indictment as the director of college entrance exam preparation at a private school and sports academy in Bradenton, Florida. The indictment says he has agreed to plead guilty to conspiracy to commit mail fraud and money laundering. On Wednesday, March 13, Mark Riddell, who matched that description, said in a press release that he is "profoundly sorry" for his role in the scandal.

CBS News legal analyst Rikki Klieman told "CBS This Morning" on Wednesday these parents could be facing "serious time" in prison. "We're dealing with mail fraud, wire fraud, conspiracy to commit these crimes," Klieman said.

Here is a list of every parent charged in the indictment and what they are accused of doing.

Charged in a criminal complaint with conspiracy to commit mail and wire fraud

Gregory Abbott, 68, of New York, founder and chairman of International Dispensing Corp., a food and beverage packaging company. Abbott and his wife are alleged to have paid $50,000 to Key Worldwide Foundation in return for CW-1 and CW-2 proctoring their daughter's ACT exam and correcting her answers as she completed it. Their daughter received a 35 out of 36 on the exam. The Abbotts are alleged to have paid $75,000 to have CW-2 take the SAT for their daughter, where she received a score of 800 out of a possible 800 on the math subject test and a score of 710 on the literature subject test. Pleaded guilty on May 22, 2019.

Marcia Abbott, 59, of New York, wife of Gregory Abbott, is facing the same charges. Pleaded guilty on May 22, 2019.

Gamal "Aziz" Abdelaziz, 62, of Las Vegas, former president and executive director of Wynn Macau resort. Abdelaziz is accused of bribing Donna Heinel, the senior associate athletic director at USC, to designate his daughter as a recruit to the USC basketball team in order to get her admitted to the university. He is accused of paying Key Worldwide Foundation $300,000 and paying $20,000 per month directly to Heinel. Pleaded not guilty.

Diane Blake, 55, of San Francisco, an executive at retail merchandising firm. Diane Blake and her husband are accused of bribing USC's Heinel to facilitate their daughter's admission to the school as a purported volleyball recruit. Pleaded not guilty.

Todd Blake, 53, of San Francisco, an entrepreneur and investor. Todd is Diane's husband. Todd is accused of mailing a $50,000 check to USC's Women's Athletics. Blake allegedly wired $200,000 to Key Worldwide Foundation in 2018. Pleaded not guilty.

Jane Buckingham, 50, of Beverly Hills, Calif., CEO of a boutique marketing company Trendera, which has offices in New York and Los Angeles. Buckingham is alleged to have made a $50,000 donation to Key Worldwide Foundation, and it is alleged that the money went toward a false proctor who took the ACT on her son's behalf, scoring a 35 out of 36. Pleaded guilty on May 24, 2019.

Gordon Caplan, 52, of Greenwich, Conn., attorney and co-chair of the law firm Willkie Farr & Gallagher, which has hundreds of attorneys in six countries. He reportedly was placed on leave. Caplan is alleged to have paid Key Worldwide Foundation $75,000 to have CW-1 and CW-2 purport to proctor his daughter's ACT exam and correct the answers as she completed it. Pleaded guilty on May 21, 2019. Sentenced on October 3, 2019 to 1 month in prison, one year of probation upon release, a fine of $50,000 and 250 hours of community service

I-Hin "Joey" Chen, 64, of Newport Beach, Calif., operates a provider of warehousing and related services for the shipping industry. Chen is alleged to have paid $75,000 to The Key to have CW-1 and CW-2 purport to proctor his son's ACT exam and correct his answers. Chen's son scored a 33 out of a possible 36 on the exam. Pleaded not guilty.

Amy Colburn, 59, of Palo Alto, Calif. Amy is the wife of Greg Colburn. The Colburns allegedly participated in the college entrance exam on behalf of their son. Their son allegedly took the SAT with CW-2 as the purported proctor. Filed motion to dismiss indictment.

Gregory Colburn, 61, of Palo Alto, Calif. In December 2017 Gregory Colbun allegedly transferred $24,443.50 worth of stock to Key Worldwide Foundation. Filed motion to dismiss indictment.

Robert Flaxman, 62, of Laguna Beach, Calif., founder and CEO of real estate development firm Crown Realty & Development. Flaxman allegedly participated in the college entrance exam scheme and the college recruitment scheme. Flaxman allegedly wired two payment of $120,000 each to Key Worldwide Foundation in 2016 to get his son into University of San Diego. Flaxman allegedly paid Key Worldwide Foundation $75,000 to have his daughter cheat on the ACT exam with CW-2. Pleaded guilty on May 24, 2019.

Elizabeth Henriquez, 56, of Atherton, Calif. She is the wife of Manuel Henriquez. Pleaded not guilty.

Manuel Henriquez, 55, of Atherton, Calif., founder, chairman and CEO of Hercules Technology Growth Capital. On Wednesday he stepped aside as CEO of the company. The Henriquezes are alleged to have participated in cheating on college entrance exams on behalf of their two daughters four separate occasions and to have bribed Gordon Ernst, the head tennis coach at Georgetown to designate their older daughter a top tennis athlete to help her get into Georgetown. On May 4, 2016 the Henriquez Family Trust is alleged to have made a $400,000 contribution to Key Worldwide Foundation. Pleaded not guilty.

Douglas Hodge, 61, of Laguna Beach, Calif., former CEO of Pimco investment management company. Hodge is accused of using bribery to facilitate the admission of two of his children into USC as purported athletic recruits. Hodge allegedly paid Key Worldwide Foundation $450,000 to facilitate the cheating and false athletic resumes. Pleaded not guilty.

Felicity Huffman, 56, of Los Angeles, actress. Huffman is accused of having paid Key Worldwide Foundation $15,000 to participate in a college entrance exam cheating scheme on behalf of her oldest daughter. Her daughter scored a 1420 on her SAT that was proctored by CW-2, an improvement of 400 points over her PSAT, taken without CW-2 one year earlier. Pleaded guilty on May 13, 2019. Sentenced on September 13 to 14 days in prison, one year of supervised release, 250 hours of community service and fined of $30,000

Agustin Huneeus Jr., 53, of San Francisco, owner of a family wine vineyard in Napa Valley. Huneeus is accused of participating in both the college entrance cheating scheme and the college recruitment scheme for his daughter, that including bribing USC senior associate athletic director Donna Heinel and Jovan Vavic, the USC water polo coach. This includes an alleged $50,000 payment to Key Worldwide Foundation. Pleaded guilty on May 21, 2019. Sentenced on October 4, 2019 to 5 months in prison, two years of supervised release, 500 hours of community service, and a fine of $100,000

Davina Isackson, 55, of Hillsborough, Calif. Davina is the wife of Bruce Isackson. Pleaded guilty on May 1, 2019.

Bruce Isackson, 61, of Hillsborough, Calif., president of a real estate development firm. Isackson and his wife are accused of participating in both the college entrance cheating scheme and the college recruitment scheme for their older daughter as a soccer player at UCLA. The Isackson's are alleged to have paid Key Worldwide Foundation in 2016 by transferring 2,150 shares of Facebook Inc. stock, having an approximate value of $251,249, and transferring $249,420 worth of stock shares to Key Worldwide Foundation in 2018 on behalf of an admissions scheme to benefit their younger daughter. Pleaded guilty on May 1, 2019.

Michelle Janavs, 48, of Newport Coast, Calif., former executive of a large food manufacturer. Janavs is accused of participating in the college entrance exam scheme and the athletic recruitment scheme, conspiring to use bribery to have her daughter admitted into USC as a beach volleyball recruit. Janavs allegedly paid the Key Worldwide Foundation $50,000 in 2017 and an additional $25,000 in 2019 to have her daughter's ACT test improperly proctored by CW-2. Pleaded not guilty.

Elisabeth Kimmel, 54, of Las Vegas, owner and president of a media company. Kimmel is accused of participating in the college recruitment scheme by bribing officials to have her daughter admitted as a tennis recruit at Georgetown and her son as a track recruit at USC. Her family foundation is accused of donating over $450,000 to Key Worldwide Foundation. Pleaded not guilty.

Marjorie Klapper, 50, of Menlo Park, Calif., co-owner of jewelry business. Klapper is accused of having paid Key Worldwide Foundation $15,000 to participate in a college entrance exam cheating scheme on behalf of her son. Pleaded guilty on May 24, 2019.

Lori Loughlin, 54, of Los Angeles, actress. Loughlin and her husband, Mossimo Giannullo, are accused of paying bribes totaling $500,000 to have their two daughters designated as recruits to USC's crew team in order to get them admitted into the school. Loughlin posted $1 million bond on May 3, 2019. Pleaded not guilty.

Mossimo Giannulli, 55, of Los Angeles, fashion designer. Giannullo is the husband of Lori Loughlin. Pleaded not guilty.

Toby MacFarlane, 56, of Del Mar, Calif., former senior executive at a title insurance company. MacFarlane is accused of participating in the college recruitment scheme by bribing officials at USC to accept his daughter as a purported soccer recruit and his son as a purported basketball recruit. MacFarlane allegedly paid The Key $200,000 in 2014 and Key Worldwide Foundation $250,000 in 2017. Agreed to plead guilty.

William McGlashan Jr., 55, of Mill Valley, Calif., senior executive at TPG private equity firm. A spokesperson for the company said Thursday that McGlashan has been "terminated for cause... effective immediately. After reviewing the allegations of personal misconduct in the criminal complaint, we believe the behavior described to be inexcusable and antithetical to the values of our entire organization." A representative for McGlashan contacted CBS News to say that McGlashan resigned on his own terms. TPG maintains in multiple statements that he was terminated. McGlashan is accused of making a $50,000 payment to Key Worldwide Foundation to have his son's ACT exam scores "controlled." He is also facing an accusation that he conspired to bribe Donna Heinel, USC's senior athletic director, to have his son admitted to the school as a student athlete. Pleaded not guilty.

Marci Palatella, 63, of Healdsburg, Calif., CEO of a liquor distribution company. Palatella is accused of taking part in the college entrance exam scheme and the athletic recruitment scheme by conspiring to bribe USC's Heinel to designate her son as a football team recruit in order to get him admitted into the school. Palatella is accused of paying Key Worldwide Foundation a total of $475,000 to facilitate the cheating on standardized tests and admission of her son to USC as a purported football player. Pleaded not guilty.

Peter Jan Sartorio, 53, of Menlo Park, Calif., packaged food entrepreneur. Sartorio is accused of paying CW-1 $15,000 cash to have CW-2 proctor his daughter's ACT exam and correct her answers. Pleaded guilty on May 22, 2019.

Stephen Semprevivo, 53, of Los Angeles, executive at privately held provider of outsourced sales teams. Semprevivo is accused of bribing Ernst, the Georgetown tennis coach, to designate his son as a tennis recruit even though he did not play tennis competitively, in order to get him accepted into Georgetown. Semprevivo's family trust issued a check to Key Worldwide Foundation in the amount of $400,000 in 2016. Pleaded guilty on May 13, 2019. Sentenced September 26, 2019 to four months in prison two years of supervised release, 500 hours of community service, a fine of $100,000 and possible restitution to Georgetown to be decided later.

Devin Sloane, 53, of Los Angeles, founder and CEO of provider of drinking and wastewater systems. Sloane is accused of bribing USC's Heinel to designate his son as a recruit for USC's water polo team in order to get him admitted and of allegedly paying Key Worldwide Foundation $200,000. Pleaded guilty on May 13, 2019. Sentenced September 24, 2019 to four months in prison, two years of supervised release, 500 hours of community service, and a fine of $95,000.

John Wilson, 59, of Hyannis Port, Mass., founder and CEO of private equity and real estate development firm. Wilson is accused of bribing officials at USC, Stanford and Harvard to facilitate admission of his son and two daughters to those three schools. Wilson's company allegedly wired Key Worldwide Foundation $500,000 in 2018. Pleaded not guilty.

Homayoun Zadeh, 57, of Calabasas, Calif., an associate professor of dentistry. Zadeh is accused of bribing USC's Heinel to designate his daughter as a lacrosse recruit, even though she did not play competitive lacrosse, in order to get her admitted into USC. Between May 2017 and September 2018, Zadeh allegedly paid Key Worldwide Foundation $55,000. Pleaded not guilty.

Robert Zangrillo, 52, of Miami, founder and CEO of Dragon Global. Zangrillo is accused of bribing athletic officials at USC to designate his daughter as an athletic recruit and having CW-1's employee, Mikaela Sanford, take classes on behalf of his daughter. Zangrillo is accused of wiring $200,000 to one of Key Worldwide Foundation's false charitable accounts. Pleaded not guilty.

Charged in connection with roles the scheme

William Rick Singer, 58, of Newport Beach, Calif., owner of the Edge College & Career Network and CEO of the Key Worldwide Foundation. He entered a guilty plea Tuesday to racketeering conspiracy and money laundering charges. Pleaded guilty on March 12, 2019.

Mark Riddell, 36, of Palmetto, Fla., was charged in an information with conspiracy to commit mail fraud and honest services mail fraud as well as conspiracy to commit money laundering. The indictment said he plans to plead guilty. Riddell, a Harvard graduate, was listed on the website of the IMG Academy in Bradenton, Florida, as the director of college entrance exam preparation. In a statement March 13, he said, "I am profoundly sorry for the damage I have done and grief I have caused. ... I understand how my actions contributed to a loss of trust in the college admissions process." Pleaded guilty on April 12, 2019.

Rudolph "Rudy" Meredith, 51, of Madison, Conn., former head women's soccer coach at Yale University, was charged in an information with conspiracy to commit wire fraud and wire fraud. Pleaded guilty on March 28, 2019.

John Vandemoer, 41, of Stanford, Calif., the former sailing coach at Stanford University, was charged in an information with racketeering conspiracy. Pleaded guilty on March 12, 2019. Sentenced one day incarceration (deemed served) and two years supervised release plus $10,000 fine on June 1, 2019.

David Sidoo, 59, of Vancouver, Canada, was charged in an indictment with conspiracy to commit mail and wire fraud. Sidoo was arrested on Friday in San Jose, California, and appeared in U.S. District Court for the Northern District of California on Monday. A date for his initial appearance in federal court in Boston has not been scheduled. Pleaded not guilty.

Charged with racketeering conspiracy

Igor Dvorskiy, 52, of Sherman Oaks, Calif., director of a private elementary and high school in Los Angeles and a test administrator for the College Board and ACT. Pleaded not guilty.

Gordon Ernst, 52, of Chevy Chase, Md., former head coach of men and women's tennis at Georgetown University. Pleaded not guilty.

William Ferguson, 48, of Winston-Salem, N.C., former women's volleyball coach at Wake Forest University. Pleaded not guilty.

Martin Fox, 62, of Houston, president of a private tennis academy in Houston. Pleaded not guilty.

Donna Heinel, 57, of Long Beach, Calif., senior associate athletic director at the University of Southern California. Pleaded not guilty.

Laura Janke, 36, of North Hollywood, Calif., former assistant coach of women's soccer at the University of Southern California. Pleaded to one count conspiracy to commit racketeering and will cooperate with government's investigation.

Ali Khoroshahin, 49, of Fountain Valley, Calif., former head coach of women's soccer at the University of Southern California. Changed plea to guilty on June 3 and agreed to cooperate with investigation.

Steven Masera, 69, of Folsom, Calif., accountant and financial officer for the Edge College & Career Network and the Key Worldwide Foundation. Pleaded not guilty.

Jorge Salcedo, 46, of Los Angeles, former head coach of men's soccer at the University of California at Los Angeles. Pleaded not guilty.

Mikaela Sanford, 32, of Folsom, Calif., employee of the Edge College & Career Network and the Key Worldwide Foundation. Pleaded not guilty.

Jovan Vavic, 57, of Rancho Palos Verdes, Calif., former water polo coach at the University of Southern California. Pleaded not guilty.

Niki Williams, 44, of Houston, assistant teacher at a Houston high school and test administrator for the College Board and ACT. Pleaded not guilty.

Charged in a criminal complaint with conspiracy to commit mail fraud and mail fraud

Michael Center, 54, of Austin, Texas, head coach of men's tennis at the University of Texas at Austin. Pleaded guilty on April 24, 2019.

CBS News' Graham Kates contributed reporting.

Editor's Note: This story has been updated to more accurately reflect what is known about Jane Buckingham's case and the charges in William McGlashan Jr.'s case.

