John Wayne as John Phillips

Sigrid Gurie as Leni 'Lenchen' Braun

Charles Coburn as Dr. Karl Braun

Spencer Charters as Dr. 'Nunk' Atterbury

Helen MacKellar as Mrs. Welles

Roland Varno as Dr. Eric Von Scherer

Sonny Bupp as Billy Welles

Wade Boteler as Mr. Harris, Department of Agriculture Official

Trevor Bardette as Clem Higgins

Russell Simpson as Minister

Charles Waldron as Dr. William Thorpe

Wendell Niles as Man-on-the-Street Radio Announcer

Frank Brownlee as Bill--Farmer

Bob Burns as Farmer

Horace B. Carpenter as White-Haired Farmer in Oregon

Hugh Chapman as Boy

Jim Corey as Churchgoer

Calvin Ellison as Boy

Douglas Evans as 'We the People' Radio MC

Mary Field as Mrs. Stebbins

Francis Ford as Farmer Bill, with Higgins

Byron Foulger as Joe Stebbins

Stuart Holmes as Extra Farmer at Meeting

Si Jenks as Train Conductor

Darwood Kaye as Boy Patient Sitting in Chair

Gretchen Kisker as Girl

Lola Milliorn as Girl

Arthur Millett as Farmer

Jack Montgomery as Joe--Farmer

Bill Nestell as Farmer

Manuel París as Refugee Doctor

Hank Patterson as Pool Player

Rose Plumer as White Haired Farmer's Wife

Victor Potel as Postman

Dewey Robinson as Bartender

John Sheehan as Man Asking When Wedding Will Be

Ted Stanhope as Farmer

Frederick Vogeding as Herr Schmidt, Eric's Assistant

Bill Wolfe as Farmer Driving to Oregon

Wolfgang Zilzer as Dr. Rudolf Preussner