Down 23,622 this week

Michael O'Sullivan (I) (1934–1971)

Michael O'Sullivan was born on March 4, 1934 in Los Angeles, California, USA as Michael Patrick O'Sullivan. He was an actor, known for Hang 'Em High (1968) and You're a Big Boy Now (1966). He died on July 24, 1971 in San Francisco, California. See full bio »

Prop Master Reveals Movie Secrets Behind Iconic Props

IMDb goes behind the scenes with movie prop master Russell Bobbitt to learn the secrets and stories behind iconic props from Avengers: Infinity War, Iron Man, Charlie's Angels, and more. IMDb in Partnership with Zippo.

Watch the video

Around The Web


Powered by ZergNet

On Prime Video

Do you have a demo reel?

Add it to your IMDbPage

How Much Have You Seen?

How much of Michael O'Sullivan's work have you seen?

User Polls

Known For

Hang 'Em High
Hang 'Em High Francis Elroy Duffy
You're a Big Boy Now
You're a Big Boy Now Kurt Dougherty


Hide Hide Show Show Actor (2 credits)
 1968 Hang 'Em High
Francis Elroy Duffy
 1966 You're a Big Boy Now
Kurt Dougherty

Personal Details

Other Works:

He acted in William Shakespeare's play, "Troilus and Cressida," at the Oregon Shakespeare Festival in Ashland, Oregon with George Vafiades; Robert Loper; Shirley Patton; Peggy Rubin; Nagle Jackson; Jill Sandoe; Hugh Evans; Claude Woolman; Richard Graham and Paul Harper in the cast. Angus L. Bowmer was artistic director. James ... See more »

Did You Know?


Sullivan won the Obie and the Laura D'Annunzio Awards in 1963, for his portrayal of the Director in Pirandello's Six Characters in Search of an Author, directed by William Ball. See more »

Star Sign:


Contribute to This Page

Stream Trending Movies With Prime Video

Enjoy a night in with these popular movies available to stream now with Prime Video.

Start your free trial