Nora Underwood is Ricky Underwood's biological mother.
Ricky resents the fact she never tried to stop Bob from sexually abusing him. In season 2 Ricky finds her in Las Vegas. When he asks her why she never stopped the abuse, Nora tells him, "Bob broke my spirit a long time, but you are a survivor." She gives him an envelope full of money and says, "I have been saving this for ever since I heard you put your father away." She comes back in New York, New York when she wants to spend time with Ricky before she goes back to jail. Ricky spends some time with her and when she was leaving he rushed out the car and said, "Mom, wait." Tears were coming out of his eyes while he hugged her. He later asked Adrian Lee's father, Ruben Enriquez, who is a DA, to try to get her out of jail, since he is trying to forgive her for his bad childhood. She later gets out of prison with the help of Ruben and her girlfriend. She is hesitant to tell Ricky that she is gay, but eventually tells him. She is a part of Ricky, John, and Amy's lives. Nora moves in to Ashley's room because she doesn't want to be alone. She is scared she will get into drinking again. Nora gets a job at the butcher shop and later is Leo Boykewich's assistant. Nora is friends with Anne until the situation with Robie and George Juergens. Nora tells Ricky, when Amy Juergens is in New York, that he could be a single father.