Appeared as a member of a MENSA-like society in "Columbo: The Bye-Bye Sky High I.Q. Murder Case (#6.3)" (1977)). In real life he actually is a MENSA member.
He was awarded a Star on the Hollywood Walk of Fame for Live Theatre at 6233 Hollywood Boulevard in Hollywood, California.
Was twice nominated for Broadway's Tony Award: in 1958, as Best Supporting or Featured Actor (Dramatic) for "The Rope Dancers," and in 1960, as Best Supporting or Featured Actor (Musical) for "The Sound of Music."