From The TimeSplitters Wiki

R108
Unlocked by	Complete the second set of three Story missions
Species	Robot
Size	Normal
Accuracy	N/A
Agility	N/A
Stamina	N/A
Fire Proof	N/A
Shock Proof	N/A
Default AI	N/A
Native TimeZone	2035
First Appearance	TS1 Story Mode
Relations	R-109, R-110
Games	TS1

R108 or R-108, is the 8th generation of the R-100 Series of robots. He only appears in TimeSplitters 1, but a R-100 series robot appears in every game. In TS1 he is named R108, but in R-109s gallery information in TimeSplitters 2 he is referred to as R-108. The R-100 series was originally manufactured by UltraNet.

R108 is one of the two playable characters in the Spaceways mission.

TS1 Gesture	Is unassembled, when selected his body parts float up and connect to each other then says "Online".	TSFP Gesture	N/A
TS2 Gallery	N/A	TSFP Gallery	N/A