<Li> Red Forman (portrayed by Kurtwood Smith): Kitty's husband, Eric's and Laurie's father, and Hyde's adoptive father . Red is a Navy combat veteran, having served in World War II and the Korean War . Despite his mean exterior, Red occasionally displays a soft side . His hobbies include working with his power tools, drinking beer, watching television, reading the newspaper, hunting, and fishing . </Li> <Li> Midge Pinciotti (portrayed by Tanya Roberts): Bob's wife, Donna's mother, and Kitty's best friend . Midge was the sexy neighborhood mom Eric and his male friends fantasized about when coming of age . Although often dim - witted, she is also a kind - hearted woman who develops feminist ideals . She and Bob divorce when she is written out of the series after the third season, however, returns during the sixth and seventh seasons in a recurring role where she and Bob almost reunite . </Li> <Li> Bob Pinciotti (portrayed by Don Stark): Midge's husband, Donna's father . Bob often brags about his service in the National Guard, which invariably irritates Red . Bob is also known for walking around his house with his robe wide open and no underwear . He eats constantly, even in bed . Bob is almost always in a good mood and is a ladies' man . His best friend is Red, even though Red sees him as a nuisance . He usually takes the brunt of Red's abuse in a jolly manner . </Li> <Li> Laurie Forman (portrayed by Lisa Robin Kelly / Christina Moore): Eric's beautiful but evil older sister . Laurie enjoys tormenting Eric and manipulating her parents . She is promiscuous, often seen with various men, mainly Eric's friend Kelso, who cheats on his girlfriend, Jackie . Eric, Hyde, and Donna often mock her promiscuity . She also has a strained relationship with her mother, who thinks of her as a freeloader . She leaves the series during the third season but returns in a recurring role during the fifth . In season five, she and Fez marry to prevent him from getting deported . In season six, she is portrayed by a different actress, Christina Moore . </Li>

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