Conan O'Brien. Conan O'Brien was 62 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
John Mulaney. John Mulaney was 42 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Will Ferrell. Will Ferrell was 57 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Nikki Glaser. Nikki Glaser was 40 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Brian Stack. Brian Stack was >> in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'The Interruptor'.
Bill Burr. Bill Burr was 56 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Kumail Nanjiani. Kumail Nanjiani was 47 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Andy Richter. Andy Richter was 58 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Paul Rudd. Paul Rudd was 56 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Sarah Silverman. Sarah Silverman was 54 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Self'.
Marcus Raboy. Marcus Raboy was 59 in Conan O'Brien: The Kennedy Center Mark Twain Prize for American Humor as 'Director'