Benson 's life is further complicated when she is named the legal guardian of a young boy named Calvin Arliss (Charlie Tahan). Calvin 's mother, Vivian (Maria Bello), abandons him and flees when Benson 's investigation uncovers that Vivian (also a child of rape) may have killed her mother 's rapist. Vivian names Benson as Calvin 's legal guardian. Calvin lives with her for a while, until she finds Vivian and her lover Sara have relapsed into drug use. Sara confesses to murdering Vivian 's father and is then shot dead. Vivian revokes Benson 's parental rights and sends Calvin to live with his grandparents. Both Calvin and Benson are devastated by the separation. In season 13, she is seen with Calvin and his grandparents during or right before Halloween.
who played calvin on law and order svu
Charlie Tahan