There is a considerable amount of Russell's bottom and general nudity in this set of screen caps. It's not for children to view.
The song is Bad Moon Rising by Oz band The Reels. It's a rare remix version from my own 12" collection. Well hurry up, press play then.
In my opinion, the reason the UK cast work so well is that they are unlike the Hollywood stereotypes of vampires, ghosts and werewolves that are glamorous, dark, brooding, mysterious etc – this has all been painfully and glossily overdone before.
The whole premise of this show is to do away with that, and I would have thought that the show's title was a dead giveaway and besides it's got comedy that works perfectly for the characters not the situations.