Plasmus (/ˈplæzməs/) is a fictional character appearing in American comic books published by DC Comics. He is depicted as an enemy of the Teen Titans.^[1]

Plasmus first appeared in The New Teen Titans #14 and was created by Marv Wolfman and George Pérez.^[2]

Otto Von Furth was a mine worker in East Berlin, Germany until an unexpected cave-in trapped him and four fellow miners for seven days. During those days, Otto's co-workers died, leaving him as the only survivor. He and his fellow miners had been mining for radioactive radium and ended up exposed to it and when rescued, he was rushed to the hospital. Otto is later kidnapped by ex-Nazi General Zahl, who transforms him into a metahuman with plasma-based abilities. Subsequently, he joins the Brotherhood of Evil under the name Plasmus.^[3] He and the Brotherhood of Evil fight the Teen Titans on different occasions. He enjoys these fights, but regrets not being the one to finally kill Zahl. Later, Plasmus is one of several metahumans who were corrupted and brainwashed by a cult-leader.^[4] The rest of the Brotherhood of Evil reform into the Society of Sin. He is later recruited into Lex Luthor's Suicide Squad, and where he apparently dies fighting Imperiex.

Plasmus accepts an invitation to join the Secret Society of Super Villains in the Countdown to Infinite Crisis series Villains United.

Plasmus is featured in Infinite Crisis as part of a small group of villains that bombs the city of Blüdhaven. The creature known as Chemo is dropped from an aircraft and detonates, resulting in the deaths of hundreds of thousands of innocent people.

During the One Year Later crossover, Plasmus rejoins the Brotherhood of Evil. He is also seen in Salvation Run. He is used by Lex Luthor as a power source for a teleportation device, and is killed when it self-destructs.^[5]

In The New 52, Mammoth appears as one of several villains who seek to take Blue Beetle's scarab for the Brotherhood of Evil.^[6]

With his chemically-converted body, Plasmus' burning touch can bring a fiery death onto whomever he makes physical contact with, thus reducing them to a protoplasmic state. His touch is incurable and no normal human has withstood it.^[7] He additionally possesses immense strength, stamina, and durability, as well as self-healing capabilities.