Sergeant Preston of the Yukon

George W. Trendle

Dick Simmons

Sgt. Preston, Sergeant Preston, Segeant Preston

Yukon King

King, The Dog

Vic Perrin

Narrator

Rex

The Horse

Gayne Whitman

Narrator, Announcer

Paul McGuire

Ben Gordon, Inspector, Jack Garfield, Man in Post Office, Matt Bascom

Francis De Sales

Ben Barlow, Carl Stack, Cy Bartok, Harry, Milt Strang

Terry Frost

Cal Juve, Hank Mullen, Lars Ulvik, Pete, Roland

Reed Howes

Inspector, Blackie

Douglas Henderson

Cheko, Dirk Binney, Harry Evans [Walt Daniels in credits], Ross Purdy, Smitty

Carol Henry

Barfly, Carson Goon, Jake, Mike Trask, Rupert MacLane

Edgar Dearing

Brady, Elbridge 'El' Walker, Hank Webber, Jonah

Thayer Roberts

Blackjack Bannister, Cabel Jenks, Gregor Tallin, Luke Reading

Pierce Lyden

Jiffy Tyler, Larry Bates, Prospector, Sam Jackson

John Pickard

Curtis, Jim Dark, Red Brody, Sid Helm

Coleman Francis

Jake Martin, Jonathan Dewey, Matt Lance, Powers

Eddie Foster

Bart, Francois Valle, Lefty, Pierre Bourget

John Ayres

Inspector, Inspector Graves

Thom Carney

Bone, Buck Adams, Ernie Stevens

Lane Bradford

Bart Larson, Big Ike Bancroft, Jason Bowhead