Sada Carolyn Thompson (September 27, 1927 – May 4, 2011) was an American stage, film, and television actress.

[3] Thompson earned a Bachelor of Fine Arts in Theatre at the Carnegie Institute of Technology (now known as Carnegie Mellon University),[2] after which she worked steadily in regional theatre in such plays as The Seagull, Pygmalion, Our Town, Arms and the Man, and Blithe Spirit.

Her additional New York City stage-credits include The Effect of Gamma Rays on Man-in-the-Moon Marigolds, Tartuffe, and Twigs.

[5] On the strength of her success in Twigs, Thompson was signed to play neighbor Irene Lorenzo on All in the Family.

After taping her first episode, however, she was replaced by Betty Garrett, when it became obvious that she and producer Norman Lear had different opinions about how the character should be played.