He's a little, intelligent, curious, innocent, cute, compassionate, tailless young "little monkey", who's always up to something. He is voiced first by Frank Welker, and later Jeff McNeal (in Season 10/ Reboot) and Jimmy Bennett (as a human child in George's Wish episode).
George's human owner is Ted Shackleford (The Man with the Yellow Hat), who tries to keep a close eye on George, but mostly always looses concentration. George's really just a curious normal little monkey, but he's not normal when he gets up to things. George's always asking questions to Ted and his other friends.
George used to live in Africa with his animal friends, until he followed The Man With The Yellow Hat (which that was Ted) to New York City in Chicago (where it was going to be his new home) in the first film.
George's constantly very curious about many things (as his name implies), a trait, which helps George to learn, but which also often gets him into trouble, but soon in the future, he'll learn better and acted well-behaved like his siblings. George has an impressive proficiency in visual art (as well as a strong sense of natural beauty).
George is used as the teachable character in the series, and he is the one to whom new concepts are explained in detail by the other characters; the viewers learn the new concept along with George.
Throughout the series, George's adventures continue to evolve, as when he flew a kite to getting a kite string back (in Curious George Flies a Kite).
A lot of times, George will have different outfits, or clothing based on the occasion, or event. In many episodes, he has a red cap. In the fall & winter, he has a red coat & winter hat.