Ryan Reynolds plays Elisabeth Harnois's father despite being less than three years older than her (945 days to be specific). Emily Mortimer, who plays Elisabeth Harnois's mother, is less than eight years older than her in real life.
Ty Olsson (Evil Ferryman) and Christine Chatelain (Tracey) also guest starred on the long running CW series Supernatural as vampires Benny LaFitte and Jenny respectively.