Frank Clark

Roaring Ranch

Tom Marlin

The Four-Footed Ranger

Handsome Thomas (as Frank M. Clark)

The Hound of Silver Creek

John Lawton

Fighting for Gold

Sheriff

The Untamed

Sheriff Morris (as Frank M. Clark)

Twisted Trails

Doc Snow, Retired Ranchman

Beware of Strangers

Horace Kincaid, a Quack Doctor

When the West Was Young

Bootlegger

Greater Wealth

Louis Schwartz - 1st Laborer

Etienne of the Glad Heart

Old Man Paul Le Groux

Alone in the Jungle

John S. Brown - Helen's Father (as Frank M. Clark)

Willie

Jim Rucker

The Wilderness Mail

Joan's Father

In Defiance of the Law

Jim Blake

Mike's Brainstorm

The Cobbler (as Frank M. Clark)

Land of the Lawless

Simpson

The Rookie's Return

Tubbs

Firebrand Trevison

Judge Lindman

Western Racketeers

Steve Harding / Tiny Harding

The Further Adventures of Stingaree

Gypsy Prince

Shotgun Jones

Thomas Lattier

At Piney Ridge

Gen. Deering

The Light of Western Stars

Bill Stillwell

Alas! Poor Yorick!

In the Long Ago

Starlight's Father

The Yellow Dog

Alexander Cummings

The Man from Painted Post

Toby Madden

The Sergeant

Soldier

The Border Menace

Banker Harris

The Phantom Cowboy

Sheriff

Western Blood

Col. Stephens

A Pair of Boots

A Frontier Girl's Courage

John Wilson - Mary's Father

A Wanderer of the West

The Blacksmith's Love

Surgeon Mullen

The Mate of the Alden Bessie

The Ship's Captain

Wolf Blood

Pop Hadley

Rustlers of Red Dog

Judge Collins [Chs. 7, 9, 12]

The Spoilers

Dextry

The Lone Star Ranger

Laramie

Outlawed

Seth (as Frank M. Clark)

Chip of the Flying U

Patsy - the Cook

Hands Off!

Capt. Jim Ellison

Sweet Alyssum

Robert Garlan

The Wilderness Trail

Angus Fitzpatrick

The Lost City

Michael Donovan

The Still Alarm

Jo Jones

The Carpet from Bagdad

Major Callahan

A Two Fisted Tenderfoot

Herbert Ransom

After Twenty Years

Under the Rouge

Simmons

The Tiger Lily

Antonio

Yvonne from Paris

The City of Purple Dreams

Symington Otis

The Diamond Queen

Julius Zeidt

The Fatal Mistake

Trixie from Broadway

Jim Brown

The Bronc Stomper

James Hollister

The Valley of Tomorrow

Caleb Turner

You Can’t Beat the Law

Lt. O'Connor

A Final Reckoning

Jim Whitney