Agnes Moorehead played Samantha's mother, Endora on "Betwitched" EGPWS.
The voice of the 1928 Porter on "My Mother The Car" was Ann Southern ("My Little Margie")
Sounds like I'm kind of glad I missed it.
Jack.
My appreciation for Ann augmentented by lack of automotive savvy led me to a frustrated end in this discussion!
Agnes Moorehead was even better. She was one of Orson Welle's Mercury Theater players, played Citizen Kane's mother, also did some amazing work on TV, including one of the best Twilight Zone episodes (playing "Woman" in episode: "The Invaders" (episode # 2.15) 27 January 1961 - the one with the tiny little space men in the back woods cabin).
She also played mother (or nanny?) to John Wayne's Genghis Khan in The Conqueror. The only reason that is of note is that Wayne, Moorehead and Susan Hayward all blamed that film for causing the cancers that killed them. They were filmed downwind from the above ground nuclear tests and they stood and watched them go off, and all of them remembered the dust clouds drifting over them and dropping on them on set.
All three of the actresses made many movies.
Agnes Moorehead was the first "Margo Lane". Although, that was radio.