Update:
Agent Smith (The Matrix)
Ash (Alien)
Bass (Mega Man)
Bender Bending Rodriguez (Futurama)
Bishop (Aliens)
Brainiac (DC Comics)
C-3PO (Star Wars)
Calculon (Futurama)
Caprica Six (Battlestar Galactica)
Cheetor (Beast Wars)
David (Prometheus)
Dinobot (Beastwars)
The Doctor (Star Trek Voyager)
Dog (Half-Life 2)
Emeralda Kasim (Xenogears)
Gato (Chrono Trigger)
Grimlock (Transformers G1)
Grobyc (Chrono Cross)
The Iron Giant (The Iron Giant)
Jinzo (Yugioh)
Mecha-Streisand (South Park)
Mega Man (Mega Man)
Megatron (Transformers G1)
Optimus Prime (Transformers G1)
Proto Man (Mega Man)
R2-D2 (Star Wars)
ROB (Nintendo)
Robo (Chrono Trigger)
Robo-Ky (Guilty Gear)
Robot (Lost in Space)
Robot Santa (Futurama)
Rosie the Maid (The Jetsons)
Sektor (Mortal Kombat)
Sentinel (X-Men)
Sovereign (Mass Effect)
Starscream (Transformers G1)
T-1000 (Terminator 2)
T260G (SaGa Frontier)
Terminator (Terminator)
Thursday (Disgaea)
Tom Servo (Mystery Science Theater 3000)
Ultron (Marvel Comics)
The Vision (Marvel Comics)
WALL-E (Wall-E)
X (Mega Man X)
Zero (Mega Man X)
--
Still smilin'
:>