
Acting
Eleanor Audley (November 19, 1905 – November 25, 1991) was an American actress who was a familiar radio and animation voice, in addition to her TV and film roles. She is best remembered on television as Eunice Douglas on Green Acres and, for many, for providing Disney animated features with their most outstanding and memorable villainess voices, most notably two of the most sinister Disney villainesses, Lady Tremaine and Maleficent.
Description above from the Wikipedia article Bernard Lee, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Haunted Mansion | Disneyland Resort
as Madame Leota (voice)

Disney's Greatest Villains
as Lady Tremaine / Maleficent (voice) (archive footage)

Hook, Line and Sinker
as Mrs. Durham

I'll Take Sweden
as Mrs. Dow

The Unsinkable Molly Brown
as Mrs. Cartwright (uncredited)

Kisses for My President
as School Principal Osgood (uncredited)

The Wheeler Dealers
as Art Critic (uncredited)

The Second Time Around
as Mrs. Trask

The Pleasure of His Company
as Mrs. Thompson (uncredited)

Sleeping Beauty
as Maleficent (voice)

Pistols 'n' Petticoats
4 ep.

The Big Valley
as Mother Callahan · 1 ep.

Green Acres
as Mother · 1 ep.

Honey West
as Mrs. Carlton Murdock · 1 ep.

O.K. Crackerby
1 ep.

The Cara Williams Show
1 ep.
Bob Hope Presents the Chrysler Theatre
as Buttercup · 1 ep.

The Beverly Hillbillies
as Mrs. Potts · 3 ep.

The Lucy Show
as Columnist · 1 ep.

The Dick Van Dyke Show
as Partygoer · 1 ep.
No Way Out
1950