Thanks for attaching a complete cast list. 
 
I think I need to clear up what I meant about Cathy, though. I liked her when she came in, really liked her. The way she was first seen in Gary's hotel room, and his whole "double take" thing was great. And all the questions surrounding her first appearance: Is that Ciji? If so, why didn't she recognize Gary? Does she have amnesia? Did Ciji have a twin? Has Gary fell off his rocker? I really enjoyed all of that, and Gary's initial obsession with her. As I recollect, Cathy wasn't initially aspiring to be a singer. In one of Cathy's earlier episodes, she told Gary: "You want me to sing because she [Ciji] was a singer. I'm not Ciji, and I'm never gonna be Ciji." I clearly remember that. I think she just became one because Lisa Hartman herself was a singer; maybe that was a clause in her contract---let me sing, or I'm outta here! Who knows? (Oh, and I liked how Chip fell on the pitchfork with he saw "Ciji"!)
Anyhow, as time went on, Cathy became more of an "exterior" character. After her initial story-arc with Gary, she wasn't given a whole lot to work with. I did like her relationship with Joshua, primarily because Joshua was one of my favorite "villains" on the show. (Making him a televangelist was great and very creative!) However, what I didn't like was how Cathy just became a punching bag for him, and she was basically the "trophy" on his arm. Cathy had potential, certainly, but it wasn't fulfilled. Maybe that's why I ended up disliking her overall, because she just didn't live up to her hype. She was definitely a character this viewer didn't miss following her exit.