Hemeox

Hemeox was a formless alien being that lived on the edge of the Alpha Quadrant.

In 2365, it encountered the USS Valentine when it trapped within a hole in space and experimented on the crew.

It formed a humanoid face before appearing in human form. He also expressed interest about death or as he called it "limited existence", he wanted to see what happens, so he killed conn officer Hull to see what it is like, he said in order to experience every type of death, he said approximately 1/2 or 1/4 of the crew, Captain Johnson said he'd rather put the ship on self-destruct than submit to the experiment which made him realise that he shouldn't experiment like this and he released the ship.

Later, he had a conversation with Johnson about what he should do now, Johnson said explore the galaxy and Hemeox said that he found all that he needs. (TNA: "The Experiment")