CLEVELAND — A night highlighting the tragedy in Benghazi, Libya. An appearance by onetime football star Tim Tebow. A presentation detailing former President Bill Clinton's sexual misconduct.

Donald J. Trump, the presumptive nominee, has been promising a different kind of Republican National Convention, and plans obtained by The New York Times show that he is eager to put his showbiz stamp on the party's gathering, even as he struggles to attract A-list talent.

The roster of speakers obtained by The Times, and confirmed by two people with direct knowledge of the convention planning, reveals a lineup lacking many of the party's rising stars. Instead, it features some of Mr. Trump's eclectic collection of friends, celebrities and relatives, from his Slovenian supermodel wife to professional golfer Natalie Gulbis.

The parade of people seems to have been selected to broaden Mr. Trump's demographic reach.

There are several notable women speaking. They include Pam Bondi, the Florida attorney general, who tangled on television with the CNN anchor Anderson Cooper after the Orlando, Fla., nightclub massacre; Eileen Collins, the first woman to command a space shuttle mission; Gov. Mary Fallin of Oklahoma; Senator Joni Ernst of Iowa and Mr. Trump's wife, Melania.

There are a few African-Americans, like Jamiel Shaw Sr., who became an outspoken advocate for tougher immigration laws after his son was killed in 2008 by an undocumented immigrant; and Darryl Glenn, who is running for Senate in Colorado.

From sports there is Mr. Tebow, the former quarterback and Heisman Trophy winner who is known for his conservative views; Dana White, the president of the Ultimate Fighting Championship, a mixed martial arts organization; and Ms. Gulbis.

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Tim Tebow, a former N.F.L. quarterback who played for the Philadelphia Eagles last year, is scheduled to speak on the fourth night of the Republican National Convention. Credit Mel Evans/Associated Press

Billionaire Peter Thiel, the Silicon Valley entrepreneur, will represent the business community, along with Thomas J. Barrack Jr., a private-equity real estate investor.