Devin Levin was an Osmosian, a Plumber and the father of Kevin Levin. He was a Plumber stationed on the planet Earth and the rookie partner of legendary veteran Plumber, Max Tennyson.
Devin was first mentioned by name in If All Else Fails, and, so-far, has only appeared in a photograph and in a flashback in Vendetta. Max Tennyson describes Devin Levin as "Energetic" and "Likable." In appearance, Devin was outwardly indistinguishable from a human, (whenever this is also true for other Osmosians is yet to be seen, though Aggregor seems to be an Osmosian, and looks like a humanoid like figure with slight alien appearances) and spoke with a notable English accent. Devin loved his family, his wife and son, deeply, was very self-sacrificing, and considered the planet Earth to be his home.
As seen in the flashback in Vendetta, Devin Levin, a Plumber partnered with veteran Plumber, Max Tennyson, were trying to escape from a intergalactic criminal, called Ragnarok, a dangerous thief who stole the energy of suns and then sold them to the highest bidders. The key to his ship having been stolen by Devin, Ragnarok was in pursuit to retrieve it. Having managed to render their ship dead in space, Ragnarok boarded and attacked them demanding his key back.
When none of his or Max's weapons were effective against their foe, Devin was forced to use his powers to buy them an opening, but Ragnarok managed to prevent Max from getting his hands on a hand-held Null Void Projector and trapped them both under heavy fire. Forced to choose between saving the Solar System, or saving Max, Devin choose to shield Max from Ragnarok's energy blast, buying Max a chance to get his hands on the Null Void Projector and suck Ragnarok into the Null Void.
Devin died in Max's arms, expressing that dying to save the Earth wasn't a bad way to go, his last request was for Max to give his wife and son a message that he loved them.
Trivia
His son, Kevin, bares a strong resemblance to Devin; they have the same facial architecture.
It's alluded to that upon being stationed on Earth, Devin located himself in Bellwood in order to be easily reachable to his partner, Max.
