- Corpsing: Peter's reaction to Aslan saying "Beaver said you planned on turning him into a hat" was a case of this due to a fly buzzing around William's head.
- Dawson Casting: Not at first, since Peter was given an Age Lift to match his. But by Prince Caspian, three years had passed in real life, whereas the film was only one year later - making William early twenties.
- Fake American: In the films Run and Friend Request.
- Fake Nationality: An Austrian soldier in the film The Silent Mountain.
- Fatal Method Acting: A near-miss on The Silent Mountain. He was struck by lightning during filming.
- Name's the Same: As Bill Moseley, American cult actor known for Repo! The Genetic Opera.
- Those Two Actors: Noah Huntley played the older Peter in The Lion, the Witch & the Wardrobe and Alistair Lacey in The Royals.
- What Could Have Been: Auditioned to play Harry Potter.
Trivia / William Moseley