Catherine Louise "Katey" Sagal (born January 19, 1954) is an American actress who provides the voices for Leela and Alternate Leela. She also played Peggy Bundy in Married... with Children which is parodied in an episode where Leela thinks she has rediscovered her home planet. Her other notable roles include Cate Hennessey on 8 Simple Rules and Gemma Teller-Morrow on FX's Sons of Anarchy.
Katey Sagal's head makes an appearance in several episodes, including A Head In The Polls. Where it appears in the TV Stars section of the head museum, and the film Into The Wild Green Yonder, where Katey Sagal's head is one of the new chief justices.
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