Kenne Duncan

Kenne Duncan (February 17, 1903 – February 5, 1972) was a Canadian-born American B-movie character actor. Hyped professionally as "The Meanest Man in the Movies," the vast majority of his over 250 appearances on camera were Westerns, but he also did occasional forays into horror, crime drama, and science fiction. He also appeared in over a dozen serials.

WIKIPEDIA

THE LIFE AND LEGEND OF WYATT EARP · S2, E12

The Lonesomest Man in the World

New deputy Bat Masterson mistakenly shoots a drunk with an empty gun in the back to protect Hal. The man is critically wounded forcing Earp to wire for a surgeon from Fort Dodge while the man's family wants revenge by killing Bat.
THE LIFE AND LEGEND OF WYATT EARP · S4, E14

Kill the Editor

A new editor is brought in to take over the Globe Times newspaper which has been under attack in Dodge City. Earp soon finds himself accused of murdering the female owner of a saloon with a Globe reporter rounding up witnesses to prove it.
THE GENE AUTRY SHOW · S1, E11

Six-Shooter Sweepstakes

Champion helps Gene track down some outlaws when the "Wonder Horse" is entered in what turns out to be a fixed race.
THE GENE AUTRY SHOW · S1, E13

The Lost Chance

Gene helps a Mexican boy kidnapped by a gang of outlaws who believe he knows the way to a legendary gold mine.
BAT MASTERSON · S1, E11

Shermans March Through Dodge City

Bat Masterson mixes in politics when President Rutherford B. Bayes and General William Tecumseh Sherman come to Dodge City on a campaign tour but unrest ensues when ex-Confederates threaten violence.