Magdalena Larkin (played by Belita Moreno) is the mortal mother of Theresa Russo (nee Larkin) and the maternal grandmother of Justin, Alex, and Max Russo, as well as the mother-in-law of Jerry Russo. She only appeared in the episode Quinceañera to attend Alex's 15th birthday party. Justin and Max are very close to her because they like to wrestle with her, especially, with Gandma always winning. She is portrayed as a very cool grandmother.