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

Adams, Chadwick T.	Tour (thanks, Cicero!)
Adams, Lloyd	Original Toronto Cast (thanks, Cicero!)
Adkins, Jeff	Original L.A. Cast (thanks, Cicero!)
Atkins, Jedd	U.S. tour (thanks, Jemima!)
Aller, John	Broadway understudy (thanks, Cicero!)
Andrews, Brian	Broadway understudy (thanks, Cicero!)
Ard, Kenneth	Broadway
Baskerville, Philip Michael	Broadway (thanks, Cicero!)
Bay, Stephen	Tour understudy (thanks, Cicero!)
Bertles, Stephen	Tour (thanks, Cicero!)
Brown, Clinton	West End
Bull, Alastair	London
Clausell, Eric	Original Hamburg Cast (thanks, Cicero!)
Dalton, T. Michael	Original 4th National Tour (thanks, Cicero!)
Fraboni, Angelo H.	Broadway (thanks, Cicero!)
Geary, Steve	Broadway (thanks, Cicero!)
Gonzalez, Rick	Broadway (thanks, Cicero!)
Hellstrøm, Johan	Original Sweden Cast (thanks, Jemima!)
Hodges, Jaymes	Broadway (thanks, Cicero!)
Holland, Trevor	Run Away to the Circus (thanks, Jemima!)
Ho, Hur Joon	Original Seoul Cast (thanks, Jemima!)
Jackson, Mike	Hamburg
Kirby, Davis	Tour understudy (thanks, Cicero!)
Kriefall, Hans	Broadway understudy (thanks, Cicero!)
Lamb, Christopher	New Zealand tour (thanks, Jemima!)
Linden, Kenny	London (thanks, Jemima!)
Loehr, Matt	Tour understudy (thanks, Cicero!)
Lothia, Fergus	West End (thanks, Rumplediva!)
MacArthur, Bruce	Original Sydney Cast (thanks, Cicero!)
Mercado, Hector Jaime	Broadway understudy (thanks, Cicero!)
Minahan, Greg	Broadway understudy (thanks, Cicero!)
Moreau, Mark R.	Tour understudy (thanks, Cicero!)
Morris, Robb Edward	Broadway (thanks, Cicero!)
R. Parry, Shawn	Tour understudy (thanks, Cicero!)
Patterson, James	Broadway (thanks, Cicero!)
Rev, Malco	Original Paris Cast (thanks, Cicero!)
Roberts, David	Original 3rd National Tour (thanks, Cicero!)
Ruttman, Jim T.	Broadway (thanks, Cicero!)
Sandell, Kimmo	Helsinki (thanks, Jemima!)
Simader, Markus	Stuttgart (thanks, Jemima!)
Spangenthal, David	Broadway understudy and tour understudy (thanks, Cicero!)
Sprague Jr., Billy	Broadway understudy (thanks, Cicero!)
Sugitani, Yoshiaki	Original Tokyo Cast (thanks, Jemima!)
Sutherland, Brian	Broadway understudy (thanks, Cicero!)
Taylor, Everett	U.S. Tour 2001
Taylor, Scott	Broadway understudy (thanks, Cicero!)
Thorton, John	Original London Cast (thanks, Cicero!)
Vargo, Matthew J.	Broadway understudy (thanks, Cicero!)
Wahl, Karl	Broadway
Walentinsson, Jens	Original Helsinki (thanks, Jemima!)
Waletzko, Craig	Broadway understudy (thanks, Cicero!)
Walters, Bryn	West End
Welterlen, Paul	Original Vienna Cast (thanks, Cicero!)
Wenes, Erik	Original Oslo Cast (thanks, Jemima!)
Wicker, Taylor	West End and tour (thanks, Cicero!)
Wilson, Keith Edward	Broadway (thanks, Cicero!)
Wise, Scott	Broadway (thanks, Cicero!)
Wojcik, Randy	Broadway (thanks, Cicero!)