C. Aubrey Smith
— Detective Jim Hanley
Sam Hardy
— Capt. Martin Gallagher
Russell Hopton
— Reporter Mooney
Ruthelma Stevens
— Doris Manning
Hale Hamilton
— J.K. Manning
Jack Mulhall
— Carey Weldon
Dorothy Mackaill
— Lola Cresmer
Syd Saylor
— Mac MacIntosh, the prop man
Paul Cavanagh
— Wylie Thornton
Natalie Moorhead
— Alma Jenkins Thornton
Marion Shilling
— Anice Cresmer
William Humphrey
— Allison, addled actor
Herman Bing
— Sam, stage director
Dot Farley
— Ella, hefty actress
Arthur Hoyt
— Watkins, theater watchman
Matthew Betz
— "Lovely" Holmes
Walter Brennan
— Backstage Detective [extra]