Doctor Albert "Al" Robbins

Robbins is Chief Medical Examiner, he helps Grissom solve another cases by autopsy and check cause of death from the body. In CSI: Las Vegas has various bodies such as kill scalp, drowning, skeleton in tar that Grissom use Liquid nitrogen distill skeleton from tar. Doctor Robbins is one person that Grissom’s teams observe.

Warrick Brown was a taxi-driver and gambler. He respects Grissom like his father in first season the new CSI was killed by a thief  because he goes to gamble.

Catherine Willows Grissom’s right-hand she was a blue dancer. Catherine analysis the evidences meticulous and she have a lot of experience from the world it makes her knows people well and use this part to solves the case.