James Gleason as Police Insp. Oscar Piper

Zasu Pitts as Hildegarde Withers

Marjorie Lord as June Preston

George Shelley as Bert

Joan Woodbury as Rita Marlowe

Frank M. Thomas as Jeff "Pops" Plummer

Tom Kennedy as Detective Casey

Alan Edwards as Ricky Rickman

Stephen Chase as Tommy Washburn (as Alden Chase)

Eddie Marr as Windy Bennett

Ada Leonard as Lil

Barbara Pepper as Alice

Eddie Borden as Stage Board Man (uncredited)

Lynton Brent as Ticket Taker (uncredited)

William Corson as Man Watching Piper Enter Theater

Sayre Dearing as Man in Audience (uncredited)

Bud Jamison as Theatre Doorman (uncredited)

Donald Kerr as Call Boy (uncredited)

Edward LeSaint as Coroner (uncredited)

Carl M. Leviness as Man in Audience (uncredited)

Robert McKenzie as Max, Backstage Doorman (uncredited)

Frank O'Connor as Stage Manager (uncredited)

Elizabeth Russell as Woman Watching Piper Enter Theater (uncredited)

Larry Steers as Man in Audience (uncredited)