Thoroughbreds— Full Cast

Olivia Cooke

as Amanda

Anya Taylor-Joy

as Lily

Anton Yelchin

as Tim

Paul Sparks

as Mark

Francie Swift

as Cynthia

Kaili Vernoff

as Karen

Alyssa Fishenden

as Jessica

Jackson Damon

as Phil

James Haddad

as Michael

Nolan Ball

as Delivery Guy

Celeste Oliva

as Receptionist

Stephanie Atkinson

as Knitting Therapist (uncredited)

Lauren Laperriere

as Mental Patient (uncredited)

Thomas Dings

as Teenager (uncredited)

Leah Procito

as Doctor (uncredited)