Trina Vega is one of the eight main characters in the series Victorious and Tori Vega's older sister. Trina is only one year older than Tori, and is in the senior class at Hollywood Arts. She acts like she is the most talented person at Hollywood Arts, making her friends (and her sister) annoyed.
Trina is portrayed by Daniella Monet, who also voiced Mitzi on Nickelodeon's Winx Club and an adult Tootie in The Fairly OddParents Movie film series.
She always makes Tori answer the door even though she is mostly close by it.
Jade has mentioned twice to Trina that no one likes her. ("Survival of the Hottest", "Terror on Cupcake Street")