Dennis Quaid Beauchamp Katharine McPhee Caroline Horton Queen Latifah Willie May Sam Trammell Robert Horton Sr. Christian Convery Rob Horton Madalen Mills Sistine Bailey Angela Giarratana Miss Mills Faith Dillon Mrs. Soames Nicholas Ryan Hernandez Billy Threemonger Selah Kimbro Jones Young Willie May Jayden Fontaine Norton Threemonger Sarah Rad Big Girl #1