My hometown was Cleveland Ohio... Now living in Massillon/Canton Ohio... It's most famous residents (not born here) were Paul Brown, President William McKinley (buried here) and Thurman Munson (Yankee great and buried in Canton.) This area is also home of the Pro Football HOF and where the game of football originated.
But to my hometown, Cleveland Ohio there are many born there, but here are a few.
James Lovell Jr. (Astronaut)
Halle Berry (Actress)
Wes Craven (Horror film producer, writer and director)
Jim Backus (Actor- Gilligan's Island & Mr. Magoo)
Drew Carey (Actor & Price is Right)
John D Rockefeller Jr. (Only son to John D. Rockefeller)
Dorothy Dandridge (Singer & Actor- First African-American woman to be nominated for Academy Award for Best Actress)
Paul Newman (Actor... One of the undisputed all time greats in cinema history)
Dr. Oz (Heart Surgeon & own television show)
Don King (Convicted murderer and later Boxing Promoter)
John Heisman (Collegiate coach responsible for legalizing the forward pass and introducing the centre snap and hike count... The Heisman Trophy is named after him)
Bob Hope... (One of the greatest all time actors, comedians and good will ambassador's in the history of the entertainment industry) I know, he was born in England. However, he immigrated to Cleveland at age 4, grew up in Cleveland, had ownership in the Cleveland Indians, always called Cleveland his home, was fiercely loyal to the city and the Indians and made many, many visits back to the city of Cleveland including his last trip at the age of 93 in 1996 to celebrate the city's bicentennial.
I know the OP only asked for three, sorry to be long, but in spite of all the Cleveland jokes over the years and the pathetic football team calling themselves the Cleveland Browns, I'm very proud of where I came from.