This is the 3rd part of a 3 part crossover, the only crossover including all 3 CSIs (CSI, CSI NY, and CSI Miami). The 1st starting on Bone Voyage (2009) and the 2nd continuing on Hammer Down (2009).
Second time Mark Shepard appears on CSI . First was as Rod Darling season 2 episode 23 The hungry Artist
Lee Garlington previously appeared in season 3, episode 21 as a different character.