Catherine Bell Cassie Nightingale Actor Bailee Madison Grace Actor James Denton Dr. Sam Radford Actor Catherine Disher Martha Actor Peter MacNeill George Actor Hannah Endicott-Douglas Lori Actor Noah Cappe Derek Actor Rhys Matthew Bond Nick Actor Sarah Power Abigail Pershing Guest Star Kylee Evans Stephanie Borden Guest Star Sebastian Pigott Phil Guest Star Seann Gallagher Liam Guest Star Anthony Lemke Actor Orly Adelson Executive Producer Jonathan Eskenas Executive Producer Frank Siracusa Executive Producer Craig Pryce Executive Producer Sue Tenney Executive Producer