Catarina "Cat" Valentine [3] is one of the eight main characters on Victorious. She is known as a ditzy, bubbly, cheerful and dimwitted person who rarely gets angry, although she is very sensitive. She is Jade and Tori ’s best friend and Robbie 's love interest.

He is also shown to be the only one who knows Cat's full name, Caterina. He does not seem to have a sense of privacy. His only relative who has ever been seen is his grandmother .

Cat's full name is actually Catarina Valentine, a said by Robbie in "The Blonde Squad" and herself in her video profile. While Cat's locker has never been shown or confirmed of its appearance, there was a picture posted of what her locker most likely looks like.

Caterina "Cat" Valentine is a main character of Victorious. She is Tori 's best friend and one of the strangest kids from Hollywood Arts. Cat was portrayed by Ariana Grande, who also voiced Diaspro on Winx Club.

Ariana Joan Grande-Butera (born June 26, 1993) is an American actress and singer. She is known for playing Cat Valentine on Victorious and Sam & Cat on Nickelodeon.