Paul Mescal as Lionel

Josh O'Connor as David

Molly Price as Lionel's Mother

Alison Bartlett as Samantha

Michael Schantz as Bob

Chris Cooper as Older Lionel

Raphael Sbarge as Lionel Sr.

Hadley Robinson as Belle

Peter Mark Kendall as Nathan

Emma Canning as Clarissa

Gary Raymond as William

Alessandro Bedetti as Vincent

Michael D. Xavier as Mr. Roux

Aidan Redmond as John Conway

Aedin Moloney as Mary Conway

Leo Cocovinis as Young Lionel

Tom Nelis as Grandfather

Brian Hutchison as Hal

Briana Middleton as Thankful Mary Swain