Warwick Davis is a British actor, known for his unusual height - he is 3' 6". He has appeared in some eighty onscreen productions, starting as an eleven year old going for an audition for Star Wars: Return of the Jedi. Davis was the eponymous star of George Lucas' Willow (1988), and the tiny Charms professor Filius FLitwick in the Harry Potter film series, for which he also portrayed a number of goblins and other magical souls.

Davis played the physical form of Marvin, the Paranoid Android in the 2005 film, while the voicing duties fell to Alan Rickman, with whom Davis also worked on Harry Potter.