Namor (Earth-111)

There are two Sub-Mariners through the Invasion History.

Namor McKenzie
Namor is a Human-Atlantean Hybrid that chooses to serve as a Super-Hero for The Humans and Atlanteans alike. Namor sees the symbiotes as disgusting abominations and greatly contributes to Toxin's Resistance.

Roman Sihilus
Roman is Namor's Adopted brother and a full Atlantean. Roman hates his brother, as well as all of Atlantis for accepting him. while Namor chose to help the earth, Roman wanted to oppose it, and sided with the symbiotes. Aether recognized Roman's talent and bonded him to a very special symbiote. This symbiote could disguise the appearance of its host to make Roman appear as a normal human. Roman later became The symbiotes' best spy.