Watch FMovies. Jim Bannon is back as enduring cowboy hero Red Ryder in Eagle-Lion's Roll, Thunder, Roll. As ever, Ryder's cohorts are Little Beaver and the Duchess, here played by "Little Brown Jug" and Marin Sais. This time, Ryder tries to prove that a series of cattle raids and ranch fires were not the handiwork of masked Mexican do-gooder El Conejo.