Once Upon a Christmas Miracle, which focuses on Krueger (Aimee Teegarden) and Dempsey’s (Brett Dalton) remarkable journey, is part of Hallmark Movies & Mysteries “Miracles of Christmas.”

This holiday romance is based on the incredible story about organ donor Chris Dempsey and recipient Heather Krueger, who were brought into one another's lives by a transplant surgery that led to a miraculous romance.

Told she would have less than a few months to live without a new liver, Heather's time was running out when a kind stranger heard of her plight and discovered he was a perfect match. The two met and before long a friendship developed into romance.

Aimee Teegarden as Heather Krueger

Brett Dalton as Chris Dempsey

Lolita Davidovich as Judy Dempsey

Cassandra Potenza as Ashley Krueger

Nancy Sorel as Kathy Krueger

Thom Zimerle as Bill Krueger

Steve Bacic as Jack

Melissa Marie Elias as Jennette

Martin Roach as Dr. Jenkins

Micheline Marchildon as Rosa

Candace Smith as Professor Tierney

Rick Gensiorek as Elderly Gentleman

Darren Martens as Andy

Danika Frederick as Sadie

Beverly Ndukwu as Nurse Rachel

Ray Strachan as Hotel Manager

Lois Brothers as Mrs. Wilson

Heidi Fielek as Heidi