Trailer
Cast
Eric Salazar
Grilling Man
Rachel Appelbaum
Clocky / Mr. Mailbox (uncredited)
Cristin Milioti
Grace
Clint Howard
George
Eric Bauza
Mr. Mailbox / Worry Well / Couchy / Trashy / Pee Flower (voice)
Devon Hawkes Ludlow
Charlie the Train (voice)
Bennie Taylor
Mailman Miles
Keegan-Michael Key
Buddy the Unicorn (voice)
Luke Speakman
Josh
Tory J. Malone
Tyler
Bryson JonSteele
Derek
Noah Pierre D.
Jakson (uncredited)
Michael Shannon
Willie (voice)
Jimmica Collins
Betty Bunny (voice)
Madison Polan
Hannah
Phuong Kubacki
Nurse Nancy
Tristan Borders
Oliver
Delaney Quinn
Freddy
Patton Oswalt
Strappy (voice)
Jonathan Yurco
Dark Buddy (suit)
Topher Grace
Ben
Cedwan Hooks
Betty Bunny (suit)
Mark Aaron Buerkle
Therapist (Day Player)
Caleb Williams
Wade
Sergey Zhuravsky
Buddy the Unicorn (suit)
Seamus Flynn
Timothy
Brooke Bloom
Dr. Deborah Burr