Lisabeth Shatner Lisabeth Mary Shatner is the middle daughter of Captain James T . Kirk performer William Shatner and the older sister of Melanie and younger sister of Leslie Shatner , all three by Shatner ' s first wife Gloria Rand . Together letters from the names of the three sisters were used to make up the name Mr . Lemli . She portrayed a little girl in the episode . She received no credit for her appearance and was brought into the episode by her father . Young Shatner , together with her older sister , shot their scenes from 25 August through 26 August , with an additional day on 29 August 1966 , under the supervision of a social worker . ( " " , 2013 , p . 258 ) She has later recounted in the book mentioned below , how she , as a five - year old , experienced her acting debut , " " Leslie accompanied me to the makeup room to visit dad . When we walked into the room , he was sitting in the make - up chair , his back to us . We ran forward , excitedly , relieved to see his familiar outline . When he turned towards us , I caught a glimpse of his arm and saw the skin on the inside of his elbow was covered with a long , bluish red scab ! I blanched , and my dad burst out laughing , and told us to touch the sore . It was made of rubber . At that moment , I realized everything was " pretend " . Once I understood , I relaxed . " " She has later added , " " I guess they were short of kids that day ; somehow , my sister , Leslie , and I were elected to play two of the child aliens that age horribly as soon as they hit puberty . I suppose it ' s a pretty unusual way for a little kid to spend the day . It just seemed like a giant Halloween party to me . " " For Lisabeth , being the child of a " Star Trek " superstar turned out not to be an easy cross to bear , as she has admitted to , " " I guess that ' s the trouble with how I grew up . People are always asking me , " What was it like having Captain Kirk as a father ? " The truth is , I have no idea . He just seemed like my Dad . He was gone quite a bit , especially after my parents divorced , but he was still Dad . He played with us , he ' d yell at us when we were annoying him , he ' d hug us when we were sick . Moments like the one on " Miri " just seemed like part of the package . Of course as I got older I realized I was in some pretty unusual circumstances . Maybe it was the reporters lurking around during moments of crises . Or it could have been the fact that half my friends insisted on telling me they had crushes on my father . I don ' t know . Somewhere along the way it dawned on me not everyone lived like we did . I tried to fight it . I really did . I didn ' t tell people my last name . I never watched Star Trek reruns , let alone any of the newer versions of the series . I vowed to be anti - Trek until my dying day . " " Shatner is also co - writer ( with her father ) of the 1989 reference book , " . " Life outside " Star Trek " . Besides " Star Trek " , Lisabeth appeared alongside her father in a 1986 episode of " T . J . Hooker " entitled " Partners in Death " and a 1996 episode of " TekWar " entitled " Betrayel . " The latter also guest - starred her sister Melanie , and was directed by their father . Lisabeth Shatner is currently married to makeup / effects artist Andy Clement .