Emily Yancy

Emily Yancy (Born on April 28, 1939) is an American actress.

Arnold and Lisa's Mother
In Season 7, Episode 2 entitled "Arnold and Lisa's Mother" after the commercial break, Lisa Hayes' mother (portrayed by Emily Yancy) who is a substitute teachers takes off only her left high heeled shoe and sits with one shoe off while Arnold Jackson (portrayed by Gary Coleman) and Dudley Ramsey (portrayed by Shavar Ross) are hiding under her desk in a classroom.