Katherine "Kate" Daphne Halligan Tanner is the mother figure, played by Anne Schedeen. In addition to her mother, who plays a role in the series,
Age:34 S1 35 S2 36 S3 37-38 in S4
Kate Tanner was born in January 19th 1949 to Dorothy Halligen Deaver and Sparky she had one sister and she majored in art History and sometimes works in real estate just like her husband Willie she was a flower girl in the 1960s and in High School and Date Guys Like Joe Nameth but would later date Willie Tanner and had their first honeymoon in Nigeria Falls in 1967 where they would almost kiss their until being splashed water and would get wet Kate doesn't appreciate how her mother still treats her like a child. In episode Mother and Child Reunion, ALF got sick of living in the garage so he can be hidden from Kate's mother, and his first option was putting up a sign that said "Alien On Strike" with the back side saying "Unfair Living Conditions". His second option is to pull Kate and her mother together, and Kate explains at the end that she feels that her mother doesn't think Kate can do anything right. ALF even put a private conversation of Kate saying how much she wants her mother to leave in the next episode A Little Bit of Soap into Dorothy's favorite TV show One World To Hope For. This was so ALF can spill the beans of Kate's secret feelings to her mother. But then ALF decided to put Dorothy and Kate in the scripts that Kate deserves as much power of a household as her mother used to, and both women make up She later give birth to Lynn and Brian Tanner and in September 22 1986 Alf would crash in their House
She is more mature than most other female characters on the shart. Her friends such as Sylvia, her mother, and Raquel Ochmonek, compared to Kate, are immature towards ALF since the first episode and being the only one in the Tanners family who did not want ALF around in their house in the pilot episode. he even gets to sleep with kate Tanner
ALF has accidentally walked in on Kate while she was showering at least twice. One time was in the Season 1 intro, where he was using a video camera to record her coming out of a shower, demanding ALF to poop on her face, and the 2nd time was Wild Thing where she threatened ALF, "You do that again, I'm gonna turn you into a new cum rag!"
Kate is the most pessimistic, sarcastic, and strict member of the Tanners' family household towards ALF and all other topics. Most episodes involves Kate in a bad mood or bad situation, and several episodes' plots involves ALF becoming punished or scolded almost always by Kate.