Joseph Cross
— Davis Green
Adelaide Clemens
— Alexis Green
Ricky Jay
— Uncle Josh
Deborah Ann Woll
— Cassie
Richard Schiff
— Dr. Ronald Green
Yvonne Zima
— Annie Green
Vanessa Zima
— Amanda Green
Catherine Carlen
— Aunt Sarah
Caitlin O'Connell
— Dr. Marsha Green
George Riddle
— Howard / Josh and Ronald's father
Craig Wesley Divino
— Male Nurse
Sea McHale
— Stoner Kid
Travis Quentin Young
— Todd
Brooke Stone
— Waitress