Good Boy! is a 2003 American science fiction comedy film directed by John Hoffman, based on the book Dogs from Outer Space by Zeke Richardson; Hoffman and Richardson collaborated on the screen story, while Hoffman wrote the screenplay. The film stars Liam Aiken as Owen Baker, as well as the voices of Matthew Broderick, Delta Burke, Donald Faison, Brittany Murphy, Carl Reiner, Vanessa Redgrave, and Cheech Marin as the abundant dog characters in the film.

Matthew Broderick is an American actor. His roles include the Golden Globe–nominated portrayal of the title character in Ferris Bueller's Day Off (1986), the voice of adult Simba in Disney's The Lion King (1994), and Leo Bloom in both the Broadway musical The Producers and its 2005 film adaptation. Other films he has starring credits in include WarGames (1983), Glory (1989), The Freshman (1990), The Cable Guy (1996), Godzilla (1998), Election (1999), Inspector Gadget (1999), You Can Count on Me (2000), and The Last Shot (2004). Broderick also directed himself in Infinity (1996) and provided voice work in Good Boy! (2003), Bee Movie (2007), and The Tale of Despereaux (2008).