Marlene Kiki Ludlow is Mike Heck's brother Rusty Heck's ex-wife. Mike's anti-social brother Rusty came to the Heck house wanting to throw a wedding at their house. Mike and Frankie had no idea he was even in a relationship. His fiancee, Marlene, was a very drunk, sleazy, smokey-sounding lady with brown hair. She's very rough around the edges and is someone you probably wouldn't want to get on the wrong side of. Rusty then told Mike he'd be raising two kids (from Marlene's previous marriages). The two got married in the Heck's backyard.
Marlene returns uninvited with her two teenage kids from previous marriages for Thanksgiving. At the same time, Frankie's dental boss, Dr. Ted Goodwin, arrived uninvited. Marlene kept coming on to him and liked the fact that he was a dentist. Brick stated that he thought she was Uncle Rusty's wife. She said they got a divorce and that him not communicating with anyone was one of their big problems, that and her sleeping with his best friend, but that was in the top 3.
During the family's football game, she was on the same team as Dr. Goodwin and her kids. She tackled Dr. Goodwin even though they were on the same team. But this was just to try and get intimate with Dr. Goodwin. Dr. Goodwin became very scared of her.