Characters found in The Cat in the Hat and its various adaptations.
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The main character
The Cat in the Hat
- Voiced by: Allan Sherman (1971-1973), Mason Adams (1982), Henry Gibson (1995), Marcus Lewis (1997, Living Books), Charles Martinet (1998, Dr. Suess Kindergarten), John Rust (1999, Universal Orlando), Martin Short (2011-2018), Bill Hader (2026 animated film)Played by: Mike Myers (2003 movie)
- Break the Cutie: In the original story, the Cat was disappointed after Conrad calls him out for messing up the house, leading him to sadly pack up Thing 1 and Thing 2 and leave. Fortunately, he perks back up and remembers to clean up before exiting completely.
- Excited Kids' Show Host: Of the second season of The Wubbulous World of Dr. Seuss, and The Cat in the Hat Knows a Lot About That!.
- Hammerspace: Almost anything can fit inside his hat, from his Little Cat cousins to even bridge pieces.
- The Pollyanna: Optimistic, funny, and upbeat almost 95% of the time, even in bad or difficult situations.
- Signature Headgear: His floppy red and white striped hat, which he is rarely ever seen without.
Original characters
Conrad and Sally Walden
- Conrad is voiced by: Tony Frazier (1971), Michael Davoren (1997, Living Books), Corey Padnos (1999, Universal Orlando)Sally is voiced by: Pamelyn Ferdin (1971), Brittany Lawrence (1997, Living Books)Conrad is played by: Spencer Breslin (2003 movie)Sally is played by: Dakota Fanning (2003 movie)
- Adaptation Dye-Job: The 1971 cartoon and later book and media appearances depict Conrad as a brunette with Sally as a blonde. Conrad's hair was changed to black like in the original story for Living Books, while Sally kept her blonde hair.
- Character Narrator: Conrad is the narrator of the original book and The Cat in the Hat Comes Back.
- Hair of Gold, Heart of Gold: Sally has blonde hair and is a nice and friendly child.
- Named by the Adaptation: Conrad was unnamed in the original story; he received his name for the 2003 movie. Both also received their surnames in said movie as well.
- Pink Girl, Blue Boy:
- In the installments for The Cat in the Hat's Learning Library, Conrad wears blue while Sally wears pink.
- Inverted in some artwork that show Conrad wearing a red sweater while Sally wears a blue jumper dress.
- Played straight in the 1971 cartoon; Conrad wears blue pants while Sally wears a pink dress and bow.
- In Living Books, Conrad wears orange while Sally wears lilac.
The Fish
- Voiced by: Daws Butler (1971), Ron Seawright (1997, Living Books), Corey Burton (1999, attraction), Sean Hayes (2003 movie), Rob Tinkler (2011-2018)
- Named by the Adaptation: The 1971 special gives him the rather fancy "Carlos K. Krinklebine".
- Only Sane Man: Has the most common sense out of the others, and knew not to trust the Cat and his crazy house-wrecking activities.
Thing 1 and Thing 2
- Voiced by: Thurl Ravenscroft and Lewis Morford (1971), Phil Hartman and Jon Lovitz (1975), Madeleine Wild and Ken Winston (1997, Living Books), Sandy Fox (1999, Universal's Islands of Adventure), Rob Tinkler (2011-2018)
- Adaptation Dye-Job: Their appearances in The Cat in the Hat's Learning Library books depict them with blonde hair instead of blue hair, and their suits are blue instead of red.
- Identical Twin ID Tag: The sole way to tell the two apart is they have their names and respective numbers written on their chest stickers.
- Improbable Hairstyle: Both have unusually huge and messy blue hairdos which resemble duster feathers.
- The Unintelligible: They only speak through the use of gibberish and the occasional giggles and yells in The Cat in the Hat Knows a Lot About That!, albeit they can be understood fluently.
