Frank Mitchell was a short, stocky, mischievous-looking comic and acrobat who got his start in entertainment by entering contests imitating Charles Chaplin.

Aside from the stage, Mitchell also worked circuses performing stunts on horses as a trick rider.

His last picture was a television movie titled Miracle of the Heart: A Boys Town Story in which he played a police officer.

In 1943, Mitchell appeared in an unofficial team alongside Stooges alumni Fred Sanborn and Shemp Howard in the Universal feature Crazy House.

In the middle-stooge role Curly-Joe hired long-time Ted Healy Stooge Paul "Mousie" Garner.

Despite concerns by the team that the act would flop due to them not being the "real stooges", it was a great success[citation needed].