Jonathan Garvey, the friend of Charles Ingalls.
Colin Morgan
Merlin the wizard
nobody but you
I believe it's Olivia Olson, not Olsen, but she is in the movie Love Actually as Joanna, the "pretty little girl with the big voice" who sang All I Want For Christmas Is You in the school play. Harry's (Alan Rickman) son doesn't have a crush on her, though. That would be Sam (Thomas Sangster), who plays Daniel's (Liam Neeson) stepson.
no Dove Cameron did not play any roles in Full House or Fuller House.
Colin Morgan
Katie McGrath plays Morgana in BBC's Merlin
The cast of 1985 Rose Bowl - 1985 includes: Dick Enberg as Himself - Play-by-Play Announcer Merlin Olsen as Himself - Color Commentator Ted Tollner as Himself - USC Trojans Head Coach
no the stars are Troian Bellisario, Lucy Hale, Shay Mitchell, and Ashely Benson
gaius he's the court physicion in camelot and looks after merlin
Dylan Olsen plays for the Florida Panthers.
Dylan Olsen plays defense for the Florida Panthers.
Greg Olsen plays Tight End for the Carolina Panthers.
Eric Olsen plays for the Tennessee Titans.
NFL player Eric Olsen played for Notre Dame.
Yes.
Merlin the wizard