Mother Fenton (Kay Addison's Mother)

Mother Fenton is Kay Addison's mother. She appears in season 3 episode 5 'Ed and The Allergy' when she visits her daughter Kay and her son-in-law Roger. When she arrives Roger doesn't like her, when she gets to Addison's house she finds that she is allergic to something which ends up been Mister Ed's hair according to an allergy test by her doctor. Roger finds this out when he calls her doctor in Mister Ed's barn/Wilbur's office and he doesn't want her to know so he keeps it a secret from his mother-in-law and his wife Kay. She is played by actress Isabel Randolph.