When Catherine is attacked by three Muirfield agents in the subway, Kristin Kreuk did almost all of her own stunts, including falling backward onto the train tracks.
Jay Ryan flew in from New Zealand twice to audition for the role of Vincent Keller.
It was originally planned that Evan Marks (Max Brown) was going to be the obstacle to Catherine and Vincent being together, but the triangle was scrapped because Vincent and Catherine's chemistry was too strong.
Kristin Kreuk's voice sounds scratchy throughout the pilot because she had the flu.
When Max Brown initially auditioned for the role of Evan Marks, he used an American accent. It wasn't until he spoke with his native British accent that the network decided that he was right for the role, because he "came alive".