(Adam Rodriguez and Rory Cochrane in CSI: Miami by Robert Voets/CBS (Adam Rodriguez and Rory Cochrane in CSI: Miami by Robert Voets/CBS

Eric Delko ( Adam Rodriguez) will see dead people - or at least one dead person. As a result of his posttraumatic stress disorder, the CSI: Miami agent will see the ghost of his fallen colleague Tim Speedle ( Rory Cochrane), which will, for obvious reasons, send him into a downward spiral. "Delko is doing a good job at masking his trauma," Rodriguez told TV Guide at the CBS Monday Night Season Premiere party on Sept. 19. "But I think [a meltdown] is definitely a possibility."

And while seeing the ghost is bad for Delko, Cochrane's return is great for the cast. "I'm happy to have my buddy back," says Rodriguez, who admitted last July that he was disappointed when Cochrane abruptly quit in 2004. "It wasn't the world he wanted to live in. He walked away to make himself happy."

Unfortunately Cochrane's return is short-lived - he'll only be on for two episodes. "I feel like he deserves to be here," says Emily Procter, who plays Calleigh Duquesne. "I wish he hadn't been killed. Maybe just gone to prison [instead]." - Reporting by Carita Rizzo