The coaches led soccer teams and sailing teams, guided water polo champions and budding volleyball stars. At least two had won N.C.A.A. championships. A third gave Michelle Obama and her daughters tennis lessons from his post at Georgetown.

The coaches charged Tuesday in a massive federal college admissions fraud scandal were some of the most prominent in their fields. But it was their apparent willingness to exploit their access to the admissions process at several exclusive universities that has them facing federal charges.

Who are they? Several had deep associations with the University of Southern California, where Donna Heinel, a senior athletic department administrator, is accused of playing a central role in the scandal. For nearly a decade, Heinel had overseen the admissions of athletes into U.S.C., working closely with several of the current and former Trojans coaches who have been indicted. She was fired Tuesday.

Here is a brief look at the current and former coaches identified by a federal complaint.

Jovan Vavic

U.S.C. water polo coach