Edmund Lowe

Dr. John Mandre

Lucile Fairbanks

Peg Campbell

William Henry

Jim Armstrong (as Bill Henry)

Ralph Morgan

Dr. Brady

Robert Middlemass

Sam Armstrong

Jean Brooks

Rae Langton

Mary Forbes

Mrs. Langton

Vince Barnett

Alaska

Clyde Cook

Yukon

Marjorie Wood

Ellen

Monte Blue

Flight Dispatcher

Kenneth Harlan

Flight Dispatcher

Leonid Snegoff

Dr. Recksner

William K. Howard