Trivia

Older brother of Lou Costello.

He served in the Navy during World War I. After the war, he played saxophone under the name Pat Costello with band leader Paul Whiteman in New York City. He later led a 10-piece band called Pat Costello's Gondoliers.

Brother-in-law of actor Joe Kirk.

Son of Sebastian Cristillo and Helen Cristillo.

Uncle of Chris Costello, Carole Costello, Paddy Costello-Humphreys, and Lou Costello Jr..

Great-uncle of Marki Costello.