""Lisa... Is that you? Lisa I.. I'm sorRy. III'mmM soRRy... LiiiiisSSAAAAAAA..... I Did'NT waaaaaa.... NNt Too LEEEave. Liiiiiisssssaaaaa. I didddd'nt WANT to diiiEEE. Liisa, I looveEE YouU. Doooon't gooooo!! YOOu can't.... You can't run...""
―Marty! Mrs. Armstrong to Lisa
Mrs. Armstrong was the mother of Lisa and Brad, and the wife of Marty. She is dead for unknown reasons, and can be seen facing away from Lisa in the true ending of LISA: THE FIRST, only to turn around revealing that her face is Marty's. Her actual face is never seen.