Agent X is an alien working as an agent for the MiB. He is very tall, big-earred, and green-skinned. However, he wears a human disguise when he is out in the field. In Men in Black: The Series, X is brought in as a partner to Elle and to smooth over human and alien relations. X comes from the G-Dan Galaxy, where he was suspended six times, but has a great track record. X generally does not have a good attitude to humans, believing he is better. Agent X was voiced by Adam Baldwin.
- Men in Black: The Series
- All Episodes in Season Four.
- The original comics features a rogue agent named Ecks, who's human.