Lisa Johnson-Fisher, born Lisa Garcia and her first married name Lisa Johnson, was the janitor for Addison Apartments, ex-wife of Jim Johnson, and mother of Larry Johnson. She later married Henry Fisher, becoming Sal Fisher's stepmother.

Lisa was a very kind, warm, and welcoming person. Welcoming her future husband; Jim Johnson, with open arms despite his fragile and somber state of mind at the time.

This courteous attitude continued even after her husband's disappearance when she first met Sal Fisher, though she was startled by Sal's mask at first, she quickly warmed up to him and offers to introduce him to her son.