Hansen and Brody weren't regulars for pretty much anything in the US. Brody was a guy who toured around where he wanted and held up promoters for more money, and Hansen was pretty much Japan-only past 81 other than his AWA run in 86 and his WCW run in 90-91. Hansen showed up in Memphis in 83 and had a pretty great feud with Austin Idol, though.
It's really hard to say what the 'rosters' were, but regulars/semi-regulars (depending on your term of 'regulars...these guys popped up a bunch on either the DVDVR sets or just random shows n shit) include
CWA: Lawler, Bill Dundee, Koko Ware, Bobby Eaton, Austin Idol, Buddy Landel, Dutch Mantel, Wayne Ferris, Eddie Gilbert, Tommy Rich, Kamala, Bam Bam Bigelow, Kevin Sullivan, the Fantastics, the Moondogs, Adrian Street, Randy Savage, , Norvell Austin, Jeff Jarrett, Phil Hickerson, etc.
Mid-South: Duggan, DiBiase, JYD, the Guerreros, Butch Reed, the Midnight Express, RNR Express, Magnum TA, the Fantastics, Chris Adams, Terry Taylor, the One Man Gang, Dick Murdoch, Ric Flair, Jake Roberts, Steve Williams, Terry Gordy, Bubba Rogers, Buzz Sawyer, Dick Slater, etc.
EDIT~~~~WISH I MENTIONED MR. OLYMPIA FFS. WOOLCOCK GIVIN' MR OLYMPIA A SHOUT-OUT MAKES UP FOR THE FACT I FORGOT MR. OLYMPIA. MR. OLYMPIA
Goldust/Regal have a gem of a match on 8/26/10 from Superstars. It goes 13 minutes and I remember it being great, but they had a mini series so its possible another match might have eclipsed it. Only reason I remember the date is that Masters/Mcintyre is the main event of the same show and its one of the better Superstar shows because of these 2 matches.
Ah, THAT'S the one I meant. I was thinking of the date for Masters/Chavo......for some reason.