This should be easy:

Spencer Tracy, Milton Berle, Sid Caesar, Buddy Hackett, Ethel Merman, Mickey Rooney, Dick Shawn, Phil Silvers, Terry-Thomas, Jonathan Winters, Edie Adams, Dorothy Provine, Eddie “Rochester” Anderson, Jim Backus, Ben Blue, Joe E. Brown, Alan Carney, Chick Chandler, Barrie Chase, Lloyd Corrigan, William Demarest, Andy Devine, Selma Diamond, Peter Falk, Norman Fell, Paul Ford, Stan Freberg, Louise Glenn, Leo Gorcey, Sterling Holloway, Marvin Kaplan, Edward Everett Horton, Buster Keaton, Don Knotts, Charles Lane, Mike Mazurki, Charles McGraw, Zasu Pitts, Carl Reiner, Madlyn Rhue, Roy Roberts, Arnold Stang, Nick Stewart, Sammee Tong, Jesse White, Jimmy Durante, Jack Benny, Stanley Clements, Joe DeRita, Larry Fine, Moe Howard, Nicholas Georgiade, Stacy Harris, Tom Kennedy, Ben Lessy, Bobo Lewis, Jerry Lewis, Eddie Rosson, Eddie Ryder, Jean Sewell, Doodles Weaver and Lennie Weinrib.