1. Which regular cast member did NOT appear in the very first episode, "Pilot"? Jim Brass (Paul Guilfoyle) Sara Sidle (Jorja Fox) Nick Stokes (George Eads) They all did

2. New CSI Holly Gribbs (Chandra West) is killed in the first episode, partially because she is alone at the scene of a crime when the perpetrator surprisingly returns to it. Who was SUPPOSED to be at the scene with Holly when she was attacked? Warrick Brown (Gary Dourdan) Catherine Willows (Marg Helgenberger) Gil Grissom (William Petersen) Jim Brass

3. Where was Sara Sidle working prior to joining the Las Vegas CSI team? Los Angeles San Francisco Sacramento San Diego

4. In "Friends and Lovers," one CSI investigates a case revealing that a funeral director (Kelly Connell), in order to lower his overhead costs, has been dumping corpses and re-using coffins. Which CSI cracks this case? Catherine Warrick Nick Sara

5. It's interesting that Kelly Connell plays a funeral director in "CSI," since he has also played a medical examiner on another television series. It seems that the actor likes to play roles involving corpses. On what show did Connell play an M.E.? Homicide ER Picket Fences Gideon's Crossing

6. In the sixth episode, "Who Are You?", one CSI begins to cry when held at gunpoint by a woman who has just been identified as a murderer. Which CSI needed a hankie while facing down the barrel of a pistol? Sara Warrick Nick Catherine

7. In several first season episodes, Pamela Gidley plays a consulting anthropologist who seems to be a potential love interest for Gil Grissom. What is this character's first name? Teri Mary Sherry Keri

8. In "Unfriendly Skies," we learn that a man who was killed aboard a commercial airplane had a disease that no one on board knew about. What was it? lupus epilepsy AIDS encephalitis

9. We learn in "Anonymous" that serial killer Paul Millander is taking the lives of innocent citizens with the same birthday: August 17. This is not, of course, a coincidence -- Millander is, in his own twisted way, avenging the death of someone close to him who died on August 17. Who was it? Millander's mother Millander's sister Millander's brother Millander's father

10. What's the first name of Catherine's ex-husband, who is the father of her daughter Lindsey? Billy Bobby Tommy Eddie

11. All of the CSI team get along quite well by the end of the season, but early on, one CSI clashed bitterly with Jim Brass, to the extent that the words "I hate you" were used. Whose relationship with Brass had a VERY rocky start? Nick Catherine Gil Warrick

12. Nick Stokes runs into flirtatious prostitute and troublemaker Kristy Hopkins several times in the first season, sparking a number of nasty rumors about the level of their involvement in the police department and CSI. True or False: Nick DID, in fact, have sex with Kristy. True False

13. In the episode "Boom," Nick comes VERY close to being arrested for murder. Only the tireless efforts of one of Nick's colleagues saves his career, since even being ARRESTED for a capital crime would result in his instant dismissal, regardless of the eventual findings of a court. Who saves Nick's career by finding evidence to clear him as a murder suspect? Catherine Nick Warrick Gil

14. Another serial killer rears his ugly head in "The I-15 Murders." Where does the killer routinely nab the women he later kills? hotels health clubs supermarkets truck stops

15. In "Too Tough to Die," Gil tells Sara that she needs to have a "diversion" in her life, something to take her mind off of work. As an example, Gil tells Sara what his diversion is. Finish his line: "I sometimes ride __________________." my motorcycle the monorail my bicycle rollercoasters

16. In the compelling episode "Gentle Gentle," a newborn baby, the youngest of three sons, is found dead... and, as it turns out, a member of the baby's family is responsible. Who killed the baby? the middle son the oldest son the father the mother

17. In "Justice Is Served," it's revealed that a woman has been using a certain type of dog to attack and kill joggers in order to harvest their organs. What breed of dog does this woman regularly employ as a "murder weapon"? Doberman Pinscher Great Dane/Mastifff mix German Shepherd Rottweiler

18. True or False: We learn, in the first season, that Jim Brass has a daughter. True False

19. In "Strip Strangler," the season finale, Gil Grissom corners yet another(!) serial killer, but, as he's on suspension, Gil is unarmed when he confronts the killer in a basement laundry room. The killer almost pummels Gil to death with a shovel, until five (FIVE!) shots ring out, peppering the killer's chest and saving Gil from a nasty demise. Who fires those shots, saving Gil's life? Jim Brass Warrick Brown Sara Sidle Catherine Willows

20. The last scene of the season finale ends pleasantly enough, with most of the regular cast squeezed into the booth of a diner for breakfast. Which character does NOT appear in this touching little scene? Catherine Willows Jim Brass Sara Sidle Warrick Brown