Whispering Smith Speaks Cast & Crew
George O'BrienGordon Harrington, Jr. aka John 'Whispering' Smith Kenneth ThomsonJ. Wesley Hunt Spencer ChartersCal Stone Frank SheridanGordon Harrington, Sr. Maurice CassC. Luddington Colfax Allan CavanHarrington Office Worker (uncredited) Bess FlowersSecretary (uncredited) John InceConductor (uncredited) Si JenksOiler (uncredited) J.P. McGowanCaboose Passenger (uncredited) Dick RushDenver Police Chief (uncredited) 
