Dr. Paterson

Mr. Wood

Gerard

John Austin

Col. Nathan Perry

Jack Kelman

Lt. Mark Richards

Dr. John Storrow

Bob Dudley

Barton Kendall

Tony Lamarr

Dr. Ellis

Mike Dodd

Harlow Grant

Mack Rossiter

Rodeo Cowboy

Dave Parish

Ben McGrun

Maj. Paul Whiteside

Slim Martin

Frenchy LeCroix

Henderson

Curley Ringo

Clint Canfield

Pat Farrell

Police Detective Lou Sampter

Jim Barnes

Philip Evans

Reno Blake

Charles Russell

FBI Agent Kerrigan

Pvt. Carter

Letter Writing Soldier / Narrator

Lt. Thurmond

Curly Bowman (uncredited)

Bill Allen

Ned Clark

Naval Lt. Pete Merriam

Jimmy Thorne

Richard Dennison

Dunker Gilson

Dr. Robert Redmond

Prof. J. Thomas Quincy

Dr. Hall

Jim Westlake

William Allen

Dr. Ed

Bob Elliott

Bill Summers

James Horton

Richard Clark (as Ralph Bowman)

Johnny Bones

Jeff Hill

Ted Palmer

Ray Cruthers

Dartmouth College Student

Bob Whitney

Tom Grant