Brennan Huff and Dale Doback might be grown men. But that doesn't stop them from living at home and turning into jealous, competitive stepbrothers when their single parents marry. Brennan's constant competition with Dale strains his mom's marriage to Dale's dad, leaving everyone to wonder whether they'll ever see eye to eye.
Will Ferrell
as Brennan Huff
John C. Reilly
as Dale Doback
Richard Jenkins
as Dr. Robert Doback
Mary Steenburgen
as Nancy Huff
Adam Scott
as Derek
Kathryn Hahn
as Alice
Andrea Savage
as Denise
Rob Riggle
as Randy
Lurie Poston
as Tommy
Elizabeth Yozamp
as Tiffany
Logan Manus
as Chris Gardoki
Travis T. Flory
as Redheaded Kid
