Juan Alfonso Carralero (born 11 February 1957) is a Mexican voice actor who provides voices in the Latin American narration of Thomas & Friends.
He is best known for voicing Woody Woodpecker in "The New Woody Woodpecker Show", the title character from "Who Framed Roger Rabbit?", Jackie Chan in "Jackie Chan Adventures", RoboCop in "RoboCop: The Animated Series", Monkey from the "Kung Fu Panda" series, the title character of "Megamind", and Mr. Fizz from "Codename: Kids Next Door". He is also known for dubbing for Will Smith in various films.
- Both he and Salty's Lighthouse voice actor Gary Chalk voiced Grounder from "The Adventures of Sonic the Hedgehog" in their respective languages.
- He was married to Ruth Toscano.
- He, Agnieszka Kunikowska, Gaby Ugarte, Óscar Flores, Benjamín Rivera, Luis Daniel Ramírez, Igor Cruz and Ulises Maynardo Zavala have all worked on "Codename: Kids Next Door.