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
John C. Reilly
Richard Jenkins
Mary Steenburgen
Adam Scott
Kathryn Hahn
Andrea Savage
Rob Riggle
Lurie Poston
Elizabeth Yozamp
Logan Manus
Travis T. Flory
Lili Rose McKay
Shira Piven
Seth Morris
Wayne Federman
Maria Quiban
Danielle Schneider
Gillian Vigman
Brian Huskey
Adam McKay
Seth Rogen
Chris Henchy
Mary Catherine Hamelin
Ian Roberts
Erica Vittina Phillips
Phil LaMarr
Jason Davis
Paula Killen
Ken Jeong
Horatio Sanz
Kyle Felts
Jake Szymanski
Matt Walsh
Dmitri Schuyler-Linch
Bryce Hurless
Brent White
Denise Austin