Sarah Drew
— Jess Waters
Brennan Elliott
— Mark Olson
Alina Fritsch
— Tori Voight
Stefan Gorski
— Vincent
Oskar Ricketts
— Julian Olson
Allegra Tinnefeld
— Summer Olson
Abigail Vollnhofer
— Isla Olson
Tina von Carlowitz
— Lena Huber
Jerry Kwarteng
— Reporter
Gerda Jahn
— Mistletoe Lady
Wolfram Hermann-Hubler
— St. Nikolaus
Alexander Keller
— Mayor
Anna Starzinger
— Cello Player
Grace VanderWaal
— Performer (uncredited)