Watch Full Movie Step Brothers (2008) Free Online Two spoiled guys become competitive stepbrothers after their single parents get hitched. Will Ferrell ... Brennan Huff John C. Reilly ... Dale Doback Mary Steenburgen ... Nancy Huff Richard Jenkins ... Dr. Robert Doback Adam Scott ... Derek Kathryn Hahn ... Alice Andrea Savage ... Denise Lurie Poston ... Tommy Elizabeth Yozamp ... Tiffany Logan Manus ... Chris Gardoki Travis T. Flory ... Redheaded Kid (as Travis Flory) Lili Rose McKay ... 7-year-old Girl (as Lili McKay) Shira Piven ... Nurse Seth Morris ... Doctor Wayne Federman ... Blind Man