2. Robin Williams
Born Robin McLaurin Williams on July 21, 1951, this legendary comedian was king when it came to improvisational skills. Williams began performing stand-up comedy in the San Francisco Bay Area in 1976, and just two years later, he would be cast in an episode of Happy Days as Mork, an extraterrestrial who comes to Earth from the planet Ork. The character was so popular that they created Mork & Mindy to showcase his considerable talents.
Williams would not only carry on with his stand-up but land more serious roles that garnered him much critical praise. Sadly, on August 11, 2014, at age 63, Williams decided to take his own life by hanging. It was discovered in the autopsy that he had Lewy body dementia. His widow, Susan Schneider Williams, described the condition as “the terrorist inside my husband’s brain.” Robin Williams is still regarded as one of the best comedians of all time.