Pat O'Brien (born William Joseph Patrick O'Brien) was an American stage, screen, radio, and television actor. He was a star during the first several years of his film career, the height of his popularity being during the 1930s and 1940s.

Pat O’Brien

Acting Born November 10, 1899 – Died October 15, 1983 Milwaukee, Wisconsin, USA

Pat O'Brien (born William Joseph Patrick O'Brien) was an American stage, screen, radio, and television actor. He was a star during the first several years of his film career, the height of his popularity being during the 1930s and 1940s.

Known For

The Tonight Show Starring Johnny Carson

Self

The Mike Douglas Show

Self - Co-Host

The Mike Douglas Show

Self

What's My Line?

Self

The Merv Griffin Show

Self

Happy Days

Studio One

Mike Waterson

The Virginian

J. Jimerson Jones

The Virginian

Doc Bigelow

Climax!

Police Lieutenant Moore

Climax!

Police Lieutenant

Climax!

Ed Talbot