Warner Baxter

Dr. Robert Ordway

Hillary Brooke

Kathleen Carson

Jerome Cowan

Jeffers 'Jeff' Jerome

Mark Roberts

Bob Rencoret (as Robert Scott)

Lloyd Corrigan

John Massey

Emory Parnell

Police Captain Birch

Stephen Crane

Gordon Carson

Charles Arnt

Butler

Anthony Caruso

Miguel Bragga

Lupita Tovar

Dolores Bragga

Crime Doctor

The Crime Doctor’s Strangest Case

Shadows in the Night

The Crime Doctor's Courage

The Crime Doctor's Warning

Just Before Dawn

Crime Doctor's Man Hunt

The Millerson Case

The Crime Doctor's Gamble

The Crime Doctor's Diary