Major recurring characters
Who plays Doreen?
Rules of Engagement (TV series)
 Diane Sellers as Doreen, waitress at The Island Diner.  Wendi McLendon-Covey as Liz, an unlikeable, annoying, unattractive neighbor and friend of Audrey's who lives directly upstairs from the Binghams; for a brief story arc in Season 6 she was married to Russell, but they later separated. In Season 7, Episode 7, she admitted to Russell that she is a sex addict and that she cheated on him multiple times (with multiple partners) during their brief marriage.  Sara Rue as Brenda, Jeff’s lesbian softball teammate who agrees to be a surrogate mother for Audrey and Jeff.  Nazneen Contractor as Suneetha, Timmy’s fiancée in an arranged marriage, who becomes an object of Russell’s affections.  Susan Yeagley as Tracy, a man-hungry co-worker of Audrey’s.  Taryn Southern as Allison, the object of Timmy's affections, which blossoms into an intra-office romance, then ends when she moves away and breaks up with Timmy.  Geoff Pierson as Franklin Dunbar, Russell's wealthy, lecherous father.  Orlando Jones as Brad, Jeff's gay friend from his gym who eventually makes friends with the rest of the gang.