Frank Clark

Firebrand Trevison

Judge Lindman

The Hound of Silver Creek

John Lawton

Wolf Blood

Pop Hadley

The Phantom Cowboy

Sheriff

The Lost City

Michael Donovan

The Wilderness Trail

Angus Fitzpatrick

The Four-Footed Ranger

Handsome Thomas (as Frank M. Clark)

Western Racketeers

Steve Harding / Tiny Harding

The Man from Painted Post

Toby Madden

The Lone Star Ranger

Laramie

Rustlers of Red Dog

Judge Collins [Chs. 7, 9, 12]

The Further Adventures of Stingaree

Gypsy Prince

The Border Menace

Banker Harris

The Spoilers

Dextry

Land of the Lawless

Simpson

The Sergeant

Soldier

The Mate of the Alden Bessie

The Ship's Captain

Beware of Strangers

Horace Kincaid, a Quack Doctor

Hands Off!

Capt. Jim Ellison

Etienne of the Glad Heart

Old Man Paul Le Groux

At Piney Ridge

Gen. Deering

Alas! Poor Yorick!

Willie

Jim Rucker

The Untamed

Sheriff Morris (as Frank M. Clark)

A Wanderer of the West

Greater Wealth

Louis Schwartz - 1st Laborer

The Rookie's Return

Tubbs

The Yellow Dog

Alexander Cummings

The Still Alarm

Jo Jones

Chip of the Flying U

Patsy - the Cook

Under the Rouge

Simmons

In Defiance of the Law

Jim Blake

Shotgun Jones

Thomas Lattier

Outlawed

Seth (as Frank M. Clark)

The Blacksmith's Love

Surgeon Mullen

After Twenty Years

Twisted Trails

Doc Snow, Retired Ranchman

In the Long Ago

Starlight's Father

The Wilderness Mail

Joan's Father

Fighting for Gold

Sheriff

Western Blood

Col. Stephens

The Light of Western Stars

Bill Stillwell

Sweet Alyssum

Robert Garlan

Alone in the Jungle

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

The Carpet from Bagdad

Major Callahan

When the West Was Young

Bootlegger

Roaring Ranch

Tom Marlin

A Two Fisted Tenderfoot

Herbert Ransom

A Frontier Girl's Courage

John Wilson - Mary's Father

A Pair of Boots

Mike's Brainstorm

The Cobbler (as Frank M. Clark)