- Fake Irish: The English Rupert Grint and Welsh Kimberly Nixon play Irish characters. Averted with most of the rest of the cast, including Robert Sheehan and James Nesbitt.
- Hey, It's That Guy!: Malachy is, of course, Ron Weasley, Michelle is the Alpha Bitch from Angus, Thongs & Perfect Snogging, and Luke is Nathan from Misfits.
- Playing Against Type: Rupert "Harry Potter's Bumbling Sidekick" Grint as Malachy. Not that this is his first role outside of Harry Potter, or even that Malachy is an out-and-out hellraiser (he's the most stable and grounded of the three protagonists at least). But it's definitely a new direction for him.