Radio Patrol

Grant Withers Officer Pat O'Hara

Adrian Morris Officer Sam Maloney

Kay Hughes Molly Selkirk

Mickey Rentschler Pinky Adams

Silver Wolf Irish

Gordon Hart W.H. Harrison

Frank Lackteen Mr. Tahata, alias Warner the Great

C. Montague Shaw Mr. Wellington

Harry Davenport John P. Adams, inventor

Wheeler Oakman Stevens, gang chemist

Max Hoffman Jr. Harry Selkirk

Jack Mulhall Desk Sergeant

Earl Dwire Jeremiah Crockett

Leonard Lord Franklin, the real Tahata

Dick Botiller Henchman Zutta

Louis Vokali Henchman / Off-screen Trainer of Silver Wolf

Ernie Adams Hobo

Hooper Atchley Casey

Stanley Blystone Plant Foreman

Richard Cramer Charlie