Paul Rudd

Rick

Nick Jonas

Danny

Naoimh Whelton

Laura

Jack Reynor

Mac

Havana Rose Liu

Mae Higgins

Elaine

Ian Dillon

Wedding Guest (uncredited)

Kelly Thornton

Ebimie Anthony

Mac Darling Employee

Beth Fallon

Aja

Ruby Conway Dunne

Linda

Paul Reid

Bernie

Dean Panter

La Lawyer

Juliette Crosbie

Barbara

Robert Mitchell

George