|Family & Friends|
|Enemies|| Sonny Munroe|
Chad Dylan Cooper
Chastity Ann DeWitt
|First appearance||The Legend of Candy Face|
|Portrayed by||Leslie Anne Huff|
------- Marta to Nico, "The Legend of Candy Face"
Marta even seems willing to kill for her desires, because she replaced Sonny's cheese ball with a bomb that would explode when Sonny fired it from the cheese cannon. She also trapped Chad, Nico, Grady, and Zora on an airplane that was about to crash. She was willing to let Chad escape the plane with her, but only if Chad would date her. When he refused, she jumped off the plane and took the only parachutes with her, without seeming to feel any guilt.
In the end, she was caught by Tawni and arrested for her misdeeds. Currently, she's off of MacKenzie Falls, and serving jail time. It unknown if she is to return to MacKenzie Falls.
- Despite her real name being Marta, she is still referred to as Penelope in Sonny With a Secret.
- Marta is one of the main antagonists in MacKenzie Falls.