Lillian Voyne
Bill Bartlett
Police Capt. Ed Kyne
Ann Michaels
Detective Sgt. Charlie Lorrimer
Blackie Atwater
Prof. C. Edson Hawley
Hilda Lund (as Tane Keckley)
Wilson, Frat House Manager
Spud, Reporter (uncredited)
Grimes, City Editor (uncredited)
Policeman (uncredited)
Brock (uncredited)
Lawyer Bailey (uncredited)
Judge Beasley (uncredited)
Reporter at Murder Scene (uncredited)
Policeman at Hawley's Lab (uncredited)