Trivia

One of Frank Sinatra's favorite comedians, Jack double-billed occasionally with Frank Sinatra Jr..

Bespectacled, rotund, bald-headed American nightclub and TV comic whose forte was the art of insult, often opening his act with the line, "Good evening, opponents!".

A frequent guest on The Ed Sullivan Show (1948).

Leonard's wife, Monnet Alvarez, was an artist and his daughter, Brenda Leonard Cowart, is an accomplished jazz pianist who has played for such Las Vegas shows as "City Lites", "Folies Bergere" and "Lido de Paris".