Sidney Blackmer

Sidney Blackmer

Sidney Alderman Blackmer (13 July 1895 – 6 October 1973) was an American actor. Blackmer was born and raised in Salisbury, North Carolina. He started off in an insurance and financial business but gave up on it. While working as a builder's laborer on a new building, he saw a Pearl White serial being filmed and immediately decided to go into acting. Blackmer went to New York hoping to act on the...

Known For

Rosemary's Baby

as Roman Castevet

High Society

as Seth Lord

Little Caesar

as Big Boy

Cast Credits

Revenge Is My Destiny

as Gregory Mann

Rosemary's Baby

as Roman Castevet

Joy in the Morning

as Dean James Darwent

How to Murder Your Wife

as Judge Blackstone

Stampede at Bitter Creek

as Sam Underwood

What Makes Sammy Run?

as H.L. Harrington

Strange Witness

as Christopher

Tammy and the Bachelor

as Professor Brent

Accused of Murder

as Frank Hobart

Beyond a Reasonable Doubt

as Austin Spencer

High Society

as Seth Lord

The High and the Mighty

as Humphrey Agnew

Johnny Dark

as James Fielding

Washington Story

as Philip Emery

People Will Talk

as Arthur Higgins

Saturday's Hero

as T.C. McCabe

My Girl Tisa

as Theodore Roosevelt

Duel in the Sun

as The Lover

Wilson

as Josephus Daniels

The Lady and the Monster

as Eugene Fulton

Buffalo Bill

as Theodore Roosevelt (uncredited)

Broadway Rhythm

as Press Agent

In Old Oklahoma

as Teddy Roosevelt