Just after Fred, Velma and Daphne bump into Shaggy and Scooby, Shaggy is facing towards the left-hand side of the screen but he actually runs off backwards in the direction of the right-hand side of the screen.
In the scene where the Gang discover the footprints of the werewolf, the collar of Velma's sweater turns skin-colored for a few seconds.
Goof: The werewolf had his hair cut by Shaggy and Scooby but in one scene where we see the back of him dealing with barrells, we see hair on his head but moments later, the werewolf is without the hair in close up.
The fact that the gang found an open tomb would suggest that the werewolf is not a ghost but a zombie/undead. However, the werewolf looked and acted very much alive.
(the gang is looking at a set of tracks)
Velma: I would say they are the tracks of a large wolf.
Shaggy: But he's gone. So we've got nothing to worry about.
Velma: There's only one thing that bothers me.
Fred: What's that?
Velma: Wolves are four-legged animals, but these were made by a two-legged one.
Fred, Daphne, and Velma: A werewolf.
Shaggy: A WEREWOLF?!!!
(Scooby jumps into Shaggy's arms)
Fred: Here we go with another mystery.
Velma: And the only way to solve it is to follow those tracks.
Shaggy: Oh no.
Scooby: Oh no.
Shaggy: Nothing like a cheery greeting from your friendly neighborhood werewolf ghost.
(Shaggy and Scooby were caught in a net under a waterfall)
Shaggy: Never thought I'd be glad to be a fish.
Villian: Unnamed Sheep rustler
Reason: He was scaring people away from his sheep smuggling operation.
The song Tell Me, Tell Me, which is featured in this episode, appears on the album Scooby-Doo's Snack Tracks: The Ultimate Collection.
Laurel and Hardy
Daphne describes Shaggy and Scooby as the "Laurel and Hardy of the outdoors". Stan Laurel and Oliver Hardy are a slapstick comedy double act.