Purgatory

Sheriff Forrest /

Blackjack Britton

Doc Woods /

Cavin Guthrie

Leo 'Sonny' Dillard

Deputy Glen /

Brooks /

Rose / Betty McCullough

Dolly Sloan / Ivy

Lamb / 'Lefty' Slade

Gatekeeper

Euripides

Knox

Badger

Coachman

Bartender

Inhabitant of Refuge (uncredited)

Final film of R.G. Armstrong.

All of the Purgatory residents' assumed names are nature-based: Forest, Glen, Ivy, Rose, Woods, Lamb.

Doc Holliday was indeed a dentist and not a physician. In the Old West, however, remote towns often had to use what they had for medical care. Physicians were scarce, so if a town did not have a doctor they would go to the dentist, veterinarian, or even barber for care. Also sometimes physicians would be called upon to care for sick animals if needed. It is therefore not that far of a reach that a dentist would serve as the town doctor.

In the final gunfight scenes, Rose is wearing a plastic hair clip. Plastic wasn't invented until 1907, more than 20 years after James Butler "Wild Bill" Hickock was killed.

In Purgatory, the people must live in peace for 10 years before being accepted into heaven. However, Wild Bill Hickok died in 1876 and Doc Holliday died in 1887, 11 years later. According to the movie's plot, they could not have been in purgatory together.

Blackjack: Sheriff, your mother's a whore!

Coachman: The Creator's tough, but he ain't blind.

Doc Holliday: A man sneaks up on 'ya and calls 'ya out, you're gonna react-I don't care if they call 'ya Mary Queen of Scots!