<Li> Michael, played by Chris Potter, is a mostly unseen character and is Will's lover of seven years . When the sitcom first appeared, he and Michael had recently broken up . Michael appears in the episode "Hey La, Hey La, My Ex-Boyfriend's Back", which aired on March 14, 2000 . He is mentioned occasionally by Will and Grace, and more than once Will refers to him as the love of his life . In the early seasons of the show Will has a hard time letting him go . </Li> <Ul> <Li> Lyle Finster, played by John Cleese . Lyle is the father of Stan's mistress, Lorraine . He becomes Karen's fourth husband for about 20 minutes until the couple realize how little they had in common outside of the bedroom . </Li> <Li> Scott Woolley, played by Jeff Goldblum . Wooley is the man who lost to Karen for Student Body President and has spent his life hatching schemes to ruin her . Sadly, his schemes are often poorly thought out and eventually Grace realises that he doesn't hate Karen, he loves her . However, his attempts to woo her are as misguided as his previous ones . Woolley also has a dreadful sense of word - play (i.e. "The Scotty Mammoth", "Beam me up, Woolley"). He also changes his first name when using an alias, whereas most people change their last names . </Li> <Li> Lionel Banks, played by Rip Torn . Banks is a bachelor who falls for Karen, under her alias Anastasia Beaverhausen, while Stan is in jail and tempts her into having an affair . </Li> <Li> Malcolm Widmark, played by Alec Baldwin . Widmark is a government agent who helps Stan fake his death . He has a brief relationship with Karen before she reconciles with Stan, and Widmark goes on a government mission to Sri Lanka . </Li> </Ul> <Li> Lyle Finster, played by John Cleese . Lyle is the father of Stan's mistress, Lorraine . He becomes Karen's fourth husband for about 20 minutes until the couple realize how little they had in common outside of the bedroom . </Li> <Li> Scott Woolley, played by Jeff Goldblum . Wooley is the man who lost to Karen for Student Body President and has spent his life hatching schemes to ruin her . Sadly, his schemes are often poorly thought out and eventually Grace realises that he doesn't hate Karen, he loves her . However, his attempts to woo her are as misguided as his previous ones . Woolley also has a dreadful sense of word - play (i.e. "The Scotty Mammoth", "Beam me up, Woolley"). He also changes his first name when using an alias, whereas most people change their last names . </Li>

Who plays jack's dad on will and grace