Donald Briggs

Frank Merriwell (as Don Briggs)

Jean Rogers

Elsie Belwood

John 'Dusty' King

Bruce Browning (as John King)

Carla Laemmle

Carla Rogers

House Peters Jr.

House Peters

Herschel Mayall Jr.

'Hersh' Mayall

Wallace Reid Jr.

Wally Reid

Edward Arnold Jr.

Eddie Arnold

Bryant Washburn Jr.

Bryant Washburn

Allan Hersholt

Allen Hersholt

Carlyle Blackwell Jr.

Carlyle Blackwell

Peter Gowland

Peter Gowland

Sumner Getchell

Harry

William P. Carleton

Charles Merriwell

Ben Hewlett

Daggett

Ella Ethridge

Mrs. Mary Merriwell

Walter Law

Murray Belwood

Jack Donovan

Coach Harding

Al Bridge

Henchman Black

Sam McDaniel

Jeff

King Baggot

Chemistry Professor

Chief John Big Tree

Indian John

Lynton Brent

Helpful Driver

Viola Callahan

Mrs. McLaw

Edmund Cobb

Pete

Jim Corey

Bill / Stalking Indian

Richard Cramer

Road Crew Foreman

Joseph De Grasse

Dr. Cummings

William Desmond

Captain of the 'Viking'

Al Ferguson

Big Tom

Billy Franey

Barbecue Cook

M.J. Frankovich

Baseball Game Announcer

Chester Gan

Lumber Camp Cook

June Gittelson

Dance Party Guest

Frank Hagney

Slout

Jack Hall

Theater Doorman

Millard 'Dixie' Howell

Football Player

Dickie Jones

Jimmy McLaw

Eddie Kane

Man in Audience (archive footage)

Eddie Kane

Dave

Isabel La Mal

Mrs. Belwood

Bruce Lane

Yacht Captain

Charles Lane

Man in Front Row (archive footage)

Nick Lukats

Second Mate of the 'Viking'

Philo McCullough

Berger

Monte Montague

Monte

Carlos Montalbán

Rurale Captain

Charles Murphy

Yacht Crewman

Dave O'Brien

George Baldwin

Artie Ortego

Indian

Bud Osborne

Gorman

Rain-in-the-Face

Chief Tonaka

Fred Sumner

Prof. Baldwin

Max Wagner

Pug O'Leary

Dick Wessel

Joe

Slim Whitaker

Nolan

Bert Young

Judd

Bob Walker

Lang