Warwick Ashley Davis (born 3 February 1970) is an English actor, television presenter, writer, director, comedian, and producer. He played the title characters in Willow and the “Leprechaun” film series, the Ewok Wicket in “Star Wars Episode VI: Return of the Jedi,” and both Professor Filius Flitwick and Griphook in the “Harry Potter” films.
This is the cast pitched by Harry Potter fan, Bryan Seeker. It is a possible cast if another adaptation of J.K. Rowling's seven book series, but done as a TV show, rather than as a series of films.
You can find Bryan Seeker's casting series here:
https://www.youtube.com/playlist?list=PLR0EAiVr-Zt2IXVK1kTl6g8A8TnwUelon
