Alpha 5 (Power Rangers)
Aradiabot (Homestuck)
Jadebot (Homestuck)
Robot (Lost in Space)
The TARDIS (Doctor Who)
Honestly I'm not sure if the TARDIS counts or not. It's more of a vehicle, but it still has a consciousness.
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http://i45.tinypic.com/fpchec.gif
http://img149.imageshack.us/img149/9413/cutepuppy16.png - Number of people that D'awwed: 69