Yep, things are definitely slimming down now that most shows have had there finales. Fortunately, there were a few worth noting in the Criminal Minds season finale. Coincidentally, both previously worked on The 4400.
Criminal Minds - "To Hell... And Back"
Garret Dillahunt guest starred as the paraplegic 'Mason Turner.' Until the show was recently cancelled, he was 'Cromartie'/'John Henry' on Terminator: The Sarah Connor Chronicles. He also regularly played the role of 'Roman Nevikov' on NBC's Life, and was 'Krug' in the remake of Wes Craven's The Last House On The Left. Before that he was 'Matthew Ross' on the USA series The 4400.