Will Ferrell Reggie (voice) Jamie Foxx Bug (voice) Will Forte Doug Isla Fisher Maggie (voice) Randall Park Hunter (voice) Josh Gad Gus (voice) Harvey Guillén Shitstain (voice) Brett Gelman Willy Rob Riggle Rolf (voice) Jamie Demetriou Chester (voice) Sofía Vergara Deliliah the Couch (voice) Mike Dolphy Riley's Dad Dennis Quaid Dennis Quaid Hedy Nasser Carly (voice) Tinashe Kajese Cathy (voice) Jade Fernandez Ashley (voice) Charity Cervantes Jenna Aven Lotz Emma Gabriella Garcia Teen Girl Greta Lee Brenda David Herman Underbite Pound Dog (voice) Phil Morris Bubsy (voice) Jimmy Tatro Finn (voice)