Main Character: Las Vegas
Name Sofia Curtis
Gender Female
Family Mother (Lt.Curtis)
City Las Vegas
Job CSI Homicide Detective
Rank CSI Level 3
Specialty Ballistics
Status Alive
Portrayed By Louise Lombard

Sofia Curtis is a former Detective working for the Las Vegas Police Department. She was formerly acting day shift supervisor before being forced to join the night shift as a CSI working for Gil Grissom. She is working for the LVPD as the new Deputy Chief.

Early Life[]

Sofia's mother is a captain in the Las Vegas Police Department. Although Sofia qualified to become a detective, the sheriff "pulled her papers" and assigned her to CSI due to her lab skills. Sofia implied that her mother disapproved of the sheriff essentially drafting her to be a CSI and that she aspires to live up to her mother's reputation. (Bodies in Motion)

Season Five[]

Sofia was introduced in the Season Five episode Formalities. Due to a struggle in office politics, Conrad Ecklie demoted her from acting day shift supervisor (season 5 episode Mea Culpa) to night shift; she subsequently thought about quitting. Gil Grissom talked her into staying.

Season Six[]

Sofia resumed her original career path and returned to police work as a detective, like her mother. She originally took a position in Boulder City, but transferred back to Las Vegas in the first episode of Season Six. In the two part episode A Bullet Runs Through It, she believes that she may have accidentally shot and killed Deputy Daniel Bell in a wild shootout with drug dealers. The shooting causes her great anxiety and emotional stress, but forensic investigation eventually proved that Captain Jim Brass was the accidental shooter (the officer had unwittingly stood up in Brass's line of fire).

Season Seven[]

Later, Curtis is horrified to discover that she had actually watched an undercover cop die on camera from carbon monoxide poisoning. Though she takes it more calmly than the incident with Deputy Bell, she still feels responsible for the officer's death (Monster in the Box)


Sofia seemed romantically interested in Gil Grissom in season five. They had dinner together (Unbearable), but ultimately their relationship remained platonic. [citation needed]

Despite early tension, she and Sara Sidle often worked together in the field. They argued in the season six episode A Bullet Runs Through It over Sofia confiding in Gil Grissom about her sense of guilt. Sara pointed out that legally, Sofia should not discuss the case with Gil, who was investigating, while Sofia felt she had no one else to whom she could turn. However, they were friendly in subsequent episodes.


CSI:Crime Scene Investigation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 #
Season 5 - - - - - - X - X X - X - X X - - X - - X - - - - 8
Season 6 X X - X - X X X X - X X X X - X X X - X X X - X N/A 18
Season 7 X X X X X X X X X X - X X X X X X X X X - - X X N/A 21
Season 8 X - - - - - - - - - - - - - - - - N/A 1
Season 11 - - - - - - - - - - - - - - - - - - - X - - N/A 1
Total 49


  • Sofia became a main cast member at the beginning of the seventh season.
  • Although credited, she doesn't appear in episodes Leaving Las Vegas, Ending Happy and Leapin' Lizards from the seventh season.
  • Sofia's final main recurring appearance was in the season eight opener Dead Doll. Afterwards, she left the series without an explanation.
  • She comes back for a single episode in the Season 11 episode Father of the Bride as the new Deputy Chief.
  • Her sidearm is a Glock 26.