Born Leonard Rosenberg, Randall moved to New York at age 19 and studied theater with Sanford Meisner and at the Neighborhood Playhouse. His stage debut was in The Circle of Chalk (1941). From 1942-46 he served with the U.S. Army, following which he acted on radio and TV. He began appearing onscreen in 1957 and was a fairly busy film actor through the mid '60s. He is best known for his work on TV, particularly for his portrayal of fastidious Felix Unger on the sitcom "The Odd Couple." He also starred or costarred in the series "One Man's Family," "Mr. Peepers," "The Tony Randall Show," and "Love, Sidney." He frequently appears on TV talk shows, where he is witty, erudite, and urbane. In 1991 he created the National Actors Theater, a repertory company; its purpose is to bring star-filled classic plays to broad-based audiences at low prices.