The list of the season's "Merlin" guest stars who have appeared in the "Harry Potter" films grows Friday when Harry Melling steps into "The Sorcerer's Shadow."
Melling, who has played Harry Potter's magic-hating cousin, Dudley Dursley, wields his own wizarding skills in the episode premiering at 9 p.m. March 25 on Syfy. He plays Gilli, a small-but-lethal competitor in Camelot's legendary fighting tournament. He's lethal because he has magic on his side.
With King Uther and Prince Arthur as Gilli's likely opponents, Merlin is torn buy his new friend's use of his powers. He endangers himself, Merlin's king and prince, and Camelot itself.
Other "Harry Potter" alumni have guest starred this season, including Miriam Magolyes (who plays Professor Pomona Sprout in "HP") portrayed the possessed troll Grunhilda in "The Changling" episode; Warwick Davis (Professor Flitwick) was the mystical Gettir, gatekeeper to the land of the Fisher King in "The Eye of the Phoenix"; and in "Goblin's Gold," the voice of the mischievous goblin was provided by Mark Williams (Arthur Weasley). John Hurt, who provides the voice of the Great Dragon on "Merlin," has appeared in three "Harry Potter" films as Mr. Ollivander.Copyright © 2014, Los Angeles Times