Jesse James
Frank James
Peg Royer
Ace Marlin
Belle Calhoun
Monk Tucker
Marshal Rand [Chs. 10-12]
Lon Royer [Ch.1]
The Sheriff [Chs. 6-8]
Duffy [Ch. 4] / Duffy [11]
Harry Sharkey / Henry Simpson (Chapters 3-4)
Slim, Lanky Royer Employee [Ch.1] / Drake, Lanky Henchman Guarding Simpson [Ch.4] / Henchman Guarding Wagon [Ch.11]
'Brandy' Jones [Chs. 6-7]
Rimrock Citizen
Dutch
Townsman (uncredited)