Alec Baldwin in The Cat in the Hat (2003): Larry Quinn and the Cast
Alec Baldwin played Larry Quinn in the 2003 Cat in the Hat film. Meet Mike Myers, Kelly Preston, Dakota Fanning and the other key cast members.
Alec Baldwin in The Cat in the Hat (2003): Larry Quinn and the Cast
A cast guide for the 2003 live-action Dr. Seuss adaptation, focused on Alec Baldwin’s Larry Quinn and the actors behind the Walden household—not the 2026 animated voice cast.
Editorial scope: 2003 live-action cast identity and role hub answering actor queries, including Jim Carrey misconception; not 2026 voices.
Quick answer: who did Alec Baldwin play?
Alec Baldwin played Lawrence “Larry” Quinn in the 2003 live-action film Dr. Seuss’ The Cat in the Hat. Larry is the Walden family’s neighbor and an unwelcome influence on Joan Walden’s home life. He is not the Cat; Mike Myers plays the title character. That distinction is especially useful when short search queries combine Baldwin’s name with the film title.
Directed by Bo Welch, the movie arrived in U.S. theaters on November 21, 2003. Its story expands Dr. Seuss’s rainy-day premise into a live-action comedy about siblings Sally and Conrad Walden. If you are looking for actors in the 2026 animated adaptation, this 2003 cast list is the wrong production.
The principal 2003 actors and their roles
Mike Myers portrays the disruptive, gadget-carrying Cat. Alec Baldwin is Larry Quinn, the neighbor who hopes to become part of the Walden family. Kelly Preston plays Joan Walden, mother to Sally and Conrad. Dakota Fanning plays Sally, and Spencer Breslin plays her brother Conrad. These five names are the clearest starting point for identifying the film’s human and central fantasy characters.
Amy Hill portrays Mrs. Kwan, the adult engaged to watch the children while Joan is away. Sean Hayes performs as Joan’s boss, Mr. Humberfloob, and also supplies the voice of the family Fish. The dual Hayes credit is easy to miss because one character is human and the other is voiced. The 2003 ensemble should not be mixed with Bill Hader’s role in the separate 2026 animated feature.
Was Jim Carrey the Cat in the Hat?
No. Mike Myers played the Cat in the 2003 film. A search for “Jim Carrey as the Cat in the Hat” often reflects a mix-up with another Dr. Seuss adaptation: Carrey starred in the live-action How the Grinch Stole Christmas (2000). Neither the film’s principal credit listings nor the original film information credit Carrey as the Cat.
When checking an online cast photo, use the year and the specific film title rather than matching a Dr. Seuss character costume in isolation. Search engines may return images from multiple adaptations, promotional events, and fan-created artwork in one results set.
What about Paris Hilton and the smaller parts?
Paris Hilton appears in an uncredited club-scene cameo in the 2003 film, as reflected in extended cast databases; she is not a principal member of the Walden household. Victor Brandt is credited as the narrator, while Dan Castellaneta provides the voices associated with Thing One and Thing Two. For a complete credit list, consult the film’s full cast listing rather than treating every cameo as a major character.
The supporting cast matters because different search queries ask about a single recognizable scene, not the overall film. Mrs. Kwan, the Fish, Mr. Humberfloob, and the two Things each have a separate role. Those narrower questions are best answered on their own supporting pages instead of repeating the full credits here.
How this version differs from the 2026 animation
The 2026 Warner Bros. animated film is a new production, not a remaster or a recut of the 2003 movie. Warner Bros. identifies Bill Hader as its Cat. Its announced story involves a new assignment to cheer two children, Gabby and Sebastian, and a different group of voice performers. It should be referenced only for orientation in an article about the 2003 cast.
For exact release-day details, voice-role announcements, or the animated film’s story, check the official 2026 movie page or an existing dedicated 2026 article. That avoids putting two competing cast guides on separate URLs targeting the same query.
Frequently asked questions
Who played the Cat in the 2003 movie?
Mike Myers portrayed the Cat. Alec Baldwin played Larry Quinn, not the Cat.
Who is Alec Baldwin in The Cat in the Hat?
He plays Lawrence “Larry” Quinn, the Waldens’ neighbor and a major human supporting character.
Who plays Sally and Conrad?
Dakota Fanning plays Sally and Spencer Breslin plays Conrad.
Who played Joan Walden?
Kelly Preston portrays Joan, Sally and Conrad’s mother.
Was Jim Carrey in The Cat in the Hat (2003)?
No. The Cat is played by Mike Myers; Jim Carrey starred in a different Dr. Seuss live-action film, How the Grinch Stole Christmas.
Related reading
The Fish in The Cat in the Hat: Character, Role and 2003 Voice Actor
Who Is the Nanny in The Cat in the Hat (2003)? Mrs. Kwan Explained
The Cat in the Hat Movie Car (2003): What Is the S.L.O.W.?
Mr. Humberfloob in The Cat in the Hat (2003): Actor and Character
Thing 1 and Thing 2 in The Cat in the Hat: Book and 2003 Movie
Sources and verification
Dr. Seuss — 2003 film overview
