Christina Sierra
Name: Christina Sierra
Japanese: クリスティナ・シエラ
Genetic Type: Human
Gender: Female
Birthday: March 29
Age: 22 (Season 1, KIA)
Blood Type: O
Height: 160 cm
Weight: 47 kg
Family: mother (unnamed)
Affiliation: Celestial Being
Prev. Occupation: Hacker
Designation: Tactical Operator/System Engineer
Voiced by: Arise Satō (Japanese)
Shannon Chan-Kent (English)

Christina Sierra (クリスティナ・シエラ, Kurisutina Shiera) is a fictional character in the anime, Mobile Suit Gundam 00. Christina was one of the tactical operators of Celstial Being's Ptolemaios Crew.

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