S3, E14: When Winn's father dies, his estranged mother, Mary (guest star LAURIE METCALF), reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her, but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of M'yrnn's recent behavior.