<Li> Annika Marks as Monte Porter (season 2 - present), the principal at Anchor Beach Community Charter School . An attractive, personable professional woman, Monte wants to focus on administration, budget and finance, giving Lena control over student curriculum . </Li> <Li> Bianca A. Santos as Lexi Rivera (season 1, season 3): Mariana's best friend and Jesus' ex-girlfriend who moves to Honduras in "Honeymoon". She is also an undocumented immigrant . </Li> <Li> Jordan Rodrigues as Mat (season 2 - present): A guitarist in Lou's band . Mariana has a small crush on him and they soon begin a relationship together . </Li> <Li> Alex Saxon as Wyatt (season 1 - present): Callie's friend and on - again, off - again boyfriend . In "I Do" Wyatt reveals that his mother is moving him to Indiana to live with his grandmother . He returns in "Metropolis" and resumes his relationship with Callie . </Li>

Who plays lena's mom in the fosters