Story highlights The Republican convention starts on Monday

Each of the four nights will focus on a different theme

(CNN) The planned speakers at the Republican National Convention include Sens. Tom Cotton of Arkansas and Marco Rubio of Florida, along with Peter Thiel, the billionaire Silicon Valley entrepreneur, according to a program released by convention officials early Sunday evening.

The roster of speakers at the convention to officially nominate Donald Trump is a colorful mix of political leaders, entertainers, personalities and the candidate's family members -- in keeping with his campaign's unorthodox style. The presumptive GOP nominee's wife, Melania Trump, will speak on Monday, the convention's opening night. Daughter Tiffany Trump and son Donald Trump Jr. will address the convention Tuesday evening. Trump's younger son, Eric, will speak on Wednesday. Thursday's program includes a speech by daughter Ivanka Trump -- a key figure in her father's inner circle -- followed by the billionaire businessman's speech Thursday night accepting the GOP nomination. Newly-minted Trump running mate Mike Pence will speak on Wednesday evening.

One name conspicuously missing from the list -- Heisman-winning quarterback Tim Tebow. The convention released an official program "partial list" Thursday that included Tebow. A Trump adviser told CNN Tebow would be speaking, but the former Denver Bronco later posted a Facebook video saying it was only a "rumor."

"I wake up this morning to find out that I'm speaking at the Republican National Convention," Tebow said. "It's amazing how fast rumors fly and that's exactly what it is -- a rumor."

Each night of the four-night gathering in Cleveland will center on a different theme, such as security, immigration and the economy.

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