If you know of anyone not listed here or have more information on any of them, please tell me. Thanks!

Alan-Ross, Michael	Los Angeles (thanks, MistacorCat and Whimsey!)
Alfonsín, Eduardo	Buenos Aires (thanks, Whimsey!)
Anthony, David	Hamburg (thanks, Misto Kitty!)
Ashley, David	U.K. Tour (thanks, Misto Kitty!)
Bartley, Robert	U.S. Touring Company (thanks, Misto Kitty!)
Baskerville, Philip Michael	Broadway (thanks, Cicero124!)
Bennett, Darren	West End (thanks, Misto Kitty!)
Berdini, Kevin	Understudy (thanks, Misto Kitty!)
Bienskie, Stephen	Broadway
Bland, Steven	Original U.S. IV Tour (thanks, Whimsey!)
Bond, Greg	Original Toronto cast (thanks, Mark!)
Breese, Steven	Hamburg (thanks, Whimsey!)
Bristow, Per	Stockholm (thanks, Ivy!)
Burleson, Stanley	Amsterdam understudy (thanks, Whimsey!)
Burns, Keith	London (thanks, Cicero124!)
Butter, Fred	Hamburg and Amsterdam (thanks, Adrian and Whimsey!)
Casmack, Brian	Zurich (thanks, Misto Kitty!)
Christenson, Job	Broadway (thanks, Cicero124!)
Davies, James	West End (thanks, Misto Kitty!)
de Groot, Roberto	Antwerp understudy (thanks, Whimsey!)
DeVito, Ron	Broadway (thanks, Misto Kitty!)
Dubreuil, Dustin	Hamburg (thanks, Misto Kitty!)
Fleck, Adam	Canada (thanks, Misto Kitty!)
Gardiner, Jason	West End (thanks, jcsmith49!)
Garrott, Geoffrey	UK tour (thanks, jcsmith49!)
Gondet, Thierry	Stuttgart (thanks, Whimsey!)
Graham, Douglas	1987 Tour (thanks, Matt!)
Guzman, Daniel	Vienna (thanks, Whimsey!)
Hadobas, Paul	Vienna (thanks, Misto Kitty!)
Hibbard, David	Broadway (thanks, Taylor!)
Hoelen, Frank	Amsterdam and Antwerp (thanks, Whimsey!)
Hofmann, Timon	Hamburg (thanks, Misto Kitty!)
Holt, Christopher	Hamburg (thanks, Misto Kitty!)
Howard, Christopher	West End (thanks, Sanne and Whimsey!)
Howe, Michael	Original Vienna Cast (thanks, Misto Kitty!)
Hughes, Christian	U.K. Tour (thanks, Whimsey!)
Jaye, Tee	London (thanks, Cicero124!)
Johanson, Don	Original L.A. Cast (thanks, Misto Kitty!)
Jones, Gregory	Original Vienna Cast (thanks, Misto Kitty!)
Karl, Andy	1998 Tour (thanks, Bombalurina!)
Kenelly, Brian "B.K."	Third National in 1988 (thanks, Snar71!)
Kirby, Davis	Tour (thanks, Cats!)
Le Caon, Kevin	Hamburg (thanks, Whimsey!)
Lloyd-King, Richard	West End (thanks, Misto Kitty!)
Loreque, Kevin	Touring Company 1999 (thanks, Connie!)
Love, Allan	West End (thanks, Whimsey!)
Lucas, Tom	London (thanks, Misto Kitty!)
Madsen, Eric	Hamburg (thanks, Veermima!)
Mann, Terrance	Broadway
Masco, Eddie	Hamburg (thanks, Misto Kitty!)
Mastrocola, Frank	Broadway (thanks, Cicero124!)
McKae, Scott	Singapore (thanks, Misto Kitty!)
McKenney, Todd	Australia (thanks, Ruth!)
Minkoff, Bradford	Broadway (thanks, Cicero!)
Missah, Koffi	1998 - 1999 at West End; Hamburg (thanks, Erin, Lucy, and Whimsey!)
Morrisey, Bob	Broadway (thanks, Cicero124!)
Myers, Japheth	Hamburg (thanks, Misto Kitty!)
Nicholas, Paul	West End (thanks, Yi-Peng!)
Norbert, Frederic	Paris (thanks, Misto Kitty!)
O'Brien, Richard	Australia (thanks, Jack!)
O'Connor, Michael	Vienna (thanks, Claudia!)
Otero, Eddie	Hamburg (thanks, Misto Kitty!)
Patricks, Kevin	Hamburg (thanks, Misto Kitty!)
Partridge, John	West End and Hamburg - born on July 24th (thanks, Veermima!)
Paulsen, Harold	Hamburg (thanks, Whimsey!)
Perry, Shaun	Tour (thanks, Cats!)
Pesqueira, Erick	Hamburg (thanks, Misto Kitty!)
Phillips, Jeff	Australia (thanks, Ruth!)
Pygos, Josh	Leaping Frog Drama Company (thanks, Kate!)
Rantanen, Jarkko	Finland (thanks, Misto Kitty!)
Reed, Stephen M.	Broadway (thanks, Cicero!)
Remmerswaal, Richard	Antwerp understudy (thanks, Whimsey!)
Renzaneth, Rick	Hamburg (thanks, Whimsey!)
Reynolds, Neil	Germany (thanks, Linda!)
Rocco, Jamie	Broadway (thanks, Cicero124!)
Romagnolir, Fabrizio	Stuttgart understudy (thanks, Whimsey!)
Segura, Enrique	Understudy at Hamburg (thanks, Veermima!)
Shannon, David	London (thanks, Cicero124!)
Shepard, Ryan	Tour (thanks, Cats!)
Smith, Timothy	U.S. Touring Company (thanks, Misto Kitty!)
Solis Yamuni, Alejandro	Mexico (thanks, Misto Kitty!)
Spangenthal, David	Understudy (thanks, Crzy4Fishy!)
Spangler, Andy	Original U.S. III Tour (thanks, Whimsey!)
Sparks, Rick	Broadway (thanks, Cicero124 and Whimsey!)
Spencer, J. Robert	Tour (thanks, Cicero!)
Sprague Jr., Billy	Understudy (thanks, Crzy4Fishy!)
Stanley, Stan	U.S. Troika Tour (thanks, Whimsey!)
Strachan, Ray	Hamburg (thanks, Whimsey!)
Sundberg, Nils Olof	Stuttgart understudy (thanks, Whimsey!)
Sup, Han Jin	Original Seoul Cast (thanks, Misto Kitty!)
Sylvia, Abe	Broadway (thanks, Misto Kitty!)
Taylor, Mark	Zurich (thanks, Misto Kitty!)
Tonk, Siegmar	Stuttgart understudy (thanks, Whimsey!)
Trout, Simon David	U.K. Tour (thanks, Misto Kitty!)
Vargo, Matthew J.	Broadway (thanks, Cicero124!)
Villello, David	U.S. Touring Company (thanks, Misto Kitty!)
Waletzko, Craig	Understudy (thanks, Crzy4Fishy!)
Welterle, Dean	Vienna (thanks, Ulla!)
Wiik, Řystein	Oslo (thanks, Jemima and Whimsey!)
Wolfram, Andreas	Hamburg (thanks, Whimsey!)
Wong Sung, Ju	Original Seoul Cast (thanks, Misto Kitty!)
Yamaguchi, Yunichiro	Tokyo (thanks, Whimsey!)
Yudson, Steve	Broadway (thanks, Cicero!)
Zinsmeister, David	Understudy at Hamburg (thanks, Veermima!)