American astronomer J. Allen Hynek is best known for investigations of unidentified flying objects and efforts to promote "ufology" as a legitimate scientific pursuit.

Samuel Little is a convicted serial killer who claims to have strangled and killed 93 people between 1970 and 2005. Little is described by the FBI as "the most prolific serial killer in U.S. history."

Jeffrey Epstein was an American money manager and registered sex offender. In August 2019, he died in jail, which was ruled a suicide.

Tulsi Gabbard is a U.S. Congresswoman who represents the state of Hawaii. An Iraq war veteran and a major in the Hawaii Army National Guard, Gabbard is currently running as a 2020 Democratic presidential candidate.

Julián Castro is the former mayor of San Antonio, Texas and was the HUD Secretary under the Obama administration. He was among the candidates for the Democratic nomination in the 2020 presidential race.

Tom Steyer is an American billionaire and philanthropist. Known for his environmental and liberal political activism, Steyer is currently running as a 2020 Democratic presidential candidate.

Andrew Yang is an American businessman, lawyer, book author and philanthropist, as well as a 2020 Democratic presidential candidate.

Amy Klobuchar is a lawyer and U.S. Senator from Minnesota who is running in the 2020 Democratic presidential election.

Beto O'Rourke is a former Texas congressman who represented the state's 16th district in the U.S. House of Representatives.

Pete Buttigieg is the mayor of South Bend, Indiana, and a 2020 Democratic presidential candidate.

Greta Thunberg is a Swedish climate youth activist who has received worldwide recognition for her efforts to fight climate change.

George Westinghouse is best known for inventing an air brake system that made railroads safer and promoting alternating current technology, which revolutionized the world's light and power industries.

Garth Brooks has received every accolade the music industry can bestow on an artist and is the top-selling solo artist in U.S history with over 148 million album sales.

Bumpy Johnson was one of Harlem's most notorious crime bosses of the 20th century.

Lisa Kudrow is an Emmy Award-winning actress best known for playing the role of Phoebe on the sitcom 'Friends.' She has also starred on the TV comedies 'Web Therapy' and 'The Comeback.'

Frank 'The Irishman' Sheeran was an Irish-American labor union official who helped facilitate organized crime activity into labor unions and claimed to have killed Teamster president Jimmy Hoffa.

Naturalist, inventor and businessman Clarence Birdseye pioneered the process of flash freezing in the United States. His company was bought by General Foods.

Maya Rudolph is a comedian and actor who became a household name via her 'Saturday Night Live' tenure, which ran from 2000 to 2007.

Dirk Benedict is an actor best known for his roles on 'The A-Team' and 'Battlestar Galactica.'

Axell Hodges is a six-time X Games medalist and motocross competitor. He crashed and injured his ankles while practicing for the longest motorcycle jump in history.

Vicki Golden is a professional freestyle motocross rider and four-time X Games gold medalist. On 'Evel Live 2,' Golden shattered the motorcycle firewall record when she sped through a series of flaming wooden boards.

James Holzhauer won 32 consecutive games of 'Jeopardy,' making him the second all-around champion of the game show. Known as 'Jeopardy James,' his earnings totaled more than $2 million.

Sylvia Rivera was a Latina-American drag queen who was a gay and transgender activist in the 1960s and 70s.

David Hasselhoff is a TV actor who hit it big with two wildly successful shows: 'Knight Rider' and 'Baywatch.'