|Full Name||Caterina / Catarina Valentine|
|Date of Birth||Unknown (age 16-17)|
|Hair Color||Red (dyed)|
|Location||Venice, Los Angeles, California|
|Family|| Nona (grandmother)|
Cat's mother (unnamed)
Cat's father (unnamed)
|Friends|| Robbie Shapiro (boyfriend)|
|First Appearance||Andrew & Heidi & Cat & Robbie|
|Last Appearance||Andrew & Heidi & Cat & Robbie|
Cat Valentine is a minor returning character from Dan Schneider's Victorious and Sam & Cat. She appeared alongside Robbie in Andrew & Heidi & Cat & Robbie. Once she becomes friends with Heidi, she begins to neglect Robbie in order to spend time with Heidi.
She is portrayed by Ariana Grande.
(2008-Present: Boyfriend; Close Friend)
Cat and Robbie are close friends throughout Victorious. Robbie seems to be more tolerant of Cat's behavior, and Cat seems to be the nicest girl to Robbie. Robbie has proven many times that he likes Cat as more than a friend while Cat has shown a few subtle hints that she may like him back. Cat and Robbie both had feelings for each other and they both become a couple.
Cat and Heidi became friends when they both discover that they have the same personalities and they were starting to hang out with each other. They both enjoyed the same interest that they have and they both have a lot in common.
Cat and Andrew didn't interact as much when she and Robbie were staying at the The Resort Party Hotel. Andrew thought that someone spilled cherry Kool-Aid on Cat's hair when he saw that her hair is red.
(2010-present: Best Friend)
Tori and Cat are close friends and even though Cat’s confusion and ditzyness can sometimes annoy Tori, they are still best friends. They didn’t interact as much in the special, Andrew & Heidi & Cat & Robbie.
(2008-present: Good Friend)
Andre and Cat are good friends, even when Cat says random and ditzy things. They interacted very little in Andrew & Heidi & Cat & Robbie.
Cat: Hey sir, did you know that I’m related to a person who invented Valentine’s day? I think I really am!
Cat: Robbie! Heidi is just like me!
Cat: Have a good horsy day! This is a fun ride!
Cat: I just though of a six letter word, monkey!
- This is Cat's first time to appear as a guest character, as she was a main character in Victorious and Sam & Cat.
- If the crossover with iCarly is counted as a guest appearance, this would be Cat's second time as a guest character.