Helgenberger Talks Dr Jekyll And The End Of Season 10

CSI: Crime Scene Investigation airs the first half of the season ten finale, “Doctor Who”, tonight, May 13 at 9:00pm ET/PT. One member of the team faces suspicion of murder, and leading lady Catherine Willows (Marg Helgenberger) has to follow her gut instinct as the case heats up. (Spoilers after the jump!)

Dr Ray Langston (Laurence Fishburne) has become obsessed with catching the Dr Jekyll serial killer, but his passion for the job will land him in hot water when an investigative reporter from his past, Heidi Custer (played by Monet Mazur), winds up dead. Some people begin to wonder if Langston may actually be Dr Jekyll, but his boss is not one of them. “There are some doubts in some of the other team members, but Catherine is the one who really has his back,” Helgenberger told TV Guide. “As a supervisor, it’s important to really give everyone the benefit of the doubt and remain as objective as you possibly can. I think Catherine is a very inclusive leader, and being a woman, I think she’s a little more aware of and sensitive to the team’s feelings and thoughts. But she’s also getting more and more confident and she’ll do what she needs to do.”

Catherine has no choice but to remove Langston from the investigation, but Nick Stokes (George Eads) is still on board. “Langston can’t be on the case, but Nick is his eyes and ears,” explained executive producer Carol Mendelsohn. “Together, they investigate the death of Heidi Custer, assuming that while she was following Langston, she crossed paths with Dr Jekyll and that she is another victim or collateral damage.”

As CSI Files previously reported, it’s “Dick and Jane” serial killer Nate Haskell (Bill Irwin) who may be able to give the team the answers they need—but having the killer transferred to Las Vegas could turn out to be a very bad idea. “Catherine really puts her job on the line by going above Captain Brass [Paul Guilfoyle] to make this happen,” Helgenberger said. “We don’t have any other leads or any other choice. She’ll do whatever it takes, and she sticks to her guns. She doesn’t care about hurt feelings of Brass’ puffed-out chest. It’s a risk she has to take.”

“I don’t think Nate Haskell ever does anything that’s not planned out,” Mendelsohn continued. “Everything with him is calculated and part of a grand design. Brass has a very bad feeling about bringing Haskell to Vegas, because the last time they gave this guy a stage, somebody got killed. Brass is reluctantly dragged into this, but his cop sense says it’s going to end up in a bad way.”

In the end, finding Dr Jekyll will require a group effort from the whole CSI team. “I think our show is at its best when everything centers around one crime,” Helgenberger said. “The whole team rallies together, and it’s always great to see how the team operates with each other. The finale is actually one of our better finales. It’s very suspenseful and filled with action. It does a lot of zig-zagging.” The finale will also put some lives on the line. Mendelsohn revealed, “One or more of our CSIs will fall victim to one or more of our serial killers.”