Who is Michael O'Brien?

Michael O'Brien is a Broadway character from The Meanest Man in the World.

Who has played Michael O'Brien?

Michael O'Brien has been played by George W. Callahan across Broadway productions.

Can I sing as Michael O'Brien at Sing with the Stars?

Sing with the Stars features songs from many Broadway shows. Members sing karaoke alongside real Broadway performers at live nights in NYC, and you may get to sing as Michael O'Brien.

Michael O'Brien

from The Meanest Man in the World

Michael O'Brien is a character from The Meanest Man in the World. Sing as Michael O'Brien alongside real Broadway performers at Sing with the Stars in New York City.

Sing as This Character

Cast History

Original (1920–1921)

George W. Callahan

From the show

Michael O'Brien appears in The Meanest Man in the World.

View show details →

Also appears in

Michael O'Brien also appears in:

Frequently Asked Questions

Who is Michael O'Brien?: Michael O'Brien is a Broadway character from The Meanest Man in the World.
What show is Michael O'Brien from?: Michael O'Brien is a character from The Meanest Man in the World, a Broadway play.
Who has played Michael O'Brien?: Michael O'Brien has been played by George W. Callahan across Broadway productions.
Can I sing as Michael O'Brien at Sing with the Stars?: Sing with the Stars features songs from many Broadway shows. Members sing karaoke alongside real Broadway performers at live nights in NYC, and you may get to sing as Michael O'Brien. Request an invite.