- Is an only child.
- Father is a dry cleaner; growing up, she thought it was normal to have all of her clothes dry-cleaned.
- Was discovered at the age of 3, when an agent saw her in a restaurant and approached her and her parents to discuss modeling and commercials.
- Costarred with Jack Black in School of Rock (2003), her first film; she reunited with Black when he guest starred on iCarly in November 2010.
- Sings Leave It All to Me, the theme song for iCarly.
- Became a Neutrogena spokesmodel in 2010.
- Released her debut album, Sparks Fly, in April 2010, and followed it up with High Maintenance in March 2011.
- Kicked off her first concert tour, Dancing Crazy, in January 2011.
- Plays guitar.
- Got accepted into the University of Southern California and New York University in April 2011; deferred admission to both to continue working on iCarly.
- Sports hobbies include horseback riding, fencing and playing tennis.
- Enjoys shopping for vintage clothes and collecting purses.
- Calls herself a "movie junkie"; To Kill a Mockingbird is her favorite film.
- Tom Cosgrove — Father
- Chris Cosgrove — Mother
Season 2, Episode 10
- Birth Name: Miranda Taylor Cosgrove
- Birth Place: Los Angeles, CA
- Birthday: May 14, 1993, Taurus
- Profession: Actor, Singer
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