(written from a Production point of view)
Kay Elliot (14 May 1929 – 3 December 1982; age 53) is the actress who played the android replicas of Stella Mudd in "I, Mudd", a second season episode of Star Trek: The Original Series. She filmed her scenes on Thursday 17 August 1967 at Desilu Stage 10.
In that same year, Elliot appeared in episodes of The Man from U.N.C.L.E. and Gomer Pyle, U.S.M.C. She was later seen in multiple episodes of the classic sitcom Bewitched. Her only known film credits are the 1973 horror movie The Severed Arm (with Paul Carr) and the 1979 comedy Gas Pump Girls.
Elliot passed away in 1982. Her final television appearance was in a 1980 episode of The Righteous Apples which also featured Star Trek: Deep Space Nine star Rene Auberjonois and Star Trek: The Next Generation guest actress Fran Bennett.