Matthaius Corvin is a werewolf who comes to Beacon Hills after hearing about a Kanima.
Mathaius was born to two very powerful werewolves in 1995. When he was young both of his parents were killed in a fire. He was saved by his older brother and was raised in a pack of werewolves that were close to his parents.
In the episode Dangerous Encounter, he is encountered by Michael Rhodes who is in Kanima form. They fight each other seemingly equal. Matthaius ffinally overpower the kanima only to be approached by Sam Rodgers. Sam asks Matthaius what he is doing in Beacon Hills, he only tells him that he has his reasons. Sam punches him in the gut and asks him the same question again only to recieve the same answer. Matthaius then notices that Sam was un control of the kanima and asks Sam who he is. Sam announce that he is the alpha of the Omicron alpha pack. Matthaius was going to attack only to be surrounded by Five more alphas. Before their conversation hunters arrive and Sam, his pack, and the kanima disappears. He didn't want to stay and ponder on what happened and he left as well.
In the episode New Allies, Matthaius notices that someone is following him and he chokes the young man and demands to know who he is and asks him if he is with the Omicron pack. He is then tackled by the werewolf Scott McCall. The young man introduces himself as Quintus Wayne, a psychic. He and Scott wants Matthaius to help them take down the Omicron pack to stop them from killing innocent people. He decides to join then and to form an alliance, realizing that he wouldn't be able to take them down himself.
In the episode Destruction, he isn't seen but he is mentioned by Sam who says that he is their next victim.
In the episode The Hunted, Matthaius was being hunted down by Chris Argent and his hunters who believe that he is the one who kidnapped Allison. He hides behind a car to avoid the bullets. Chris demands to know where Allison is and he tells him he doesn't know. He moves fast enough to incapcitate Chris' hunters. Chris then shoots Matthaius and asks him again where Allison is but he gets the same answer. Chris then gives him five seconds before he shoots and kills Matthaius. Matthaius makes it to the woods fatally wounded. He is about to pass out and thinks hes about to die but he is saved by Dr. Dheaton.
In the episode Strike Back, he and Boyd wait for Michael Rhodes at Dr. Dheaton's office. Michael goes their surprised for he was expecting Scott and Dheaton. Matthaius and Boyd both transform into wolf form while Michael does an incomplete transformation. They both rush him but were both knocked back by a kick from Michael. Boyd tackles himand Michael completes his transformarion and throws Boyd away. Matthaius then faces Michael but is choked by his tail and is punched repeatedly in the gut. Boyd saves him and throws Michael into another room. The three of them watches each other waiting for someone to make a move. Boyd attacks Michael but is taken down and then paralyzed by the poison. Matthaius jumps on him but is thrown against a wall by Michael. Chris and several hunters arrive and shoot Michael. He is hit several times but kills Chris' hunters. Matthaius then grabs Michael's ankle and trips him. He then begins to pun ches him but is then knocked off. Michael tries to escape but can't due to Mountain Ash keeping him in. Michael begins to become weak and goes into an incomplete transformation. The hunters had mountain ash bullets which were taking effect. Matthaius then stands over Michael and tells him that his friends would join him soon and then he slashes his throat killing Michael. When asked by Chris how did he know where to find Michael he tells him to thank Quintus Wayne.
In the episode Chaos, he isn't seen but Artemis tells Sam that they should go after him for messing with their plans. They go to his house only to learn he isn't their and that someone else is.
In the episode Retribution, Matthaius is with the others when discussing on what to do next when a beaten and bloodied Isaac Lahey walks in. He tells them that Sam wants Matthaius and he would give them Allison. Scott tries to go but is stopped by Derek. Matthaius tells Scott he would get his girlfriend back but is told by Quintus that he may not make it back. When he gets to the lacross field to meet Sam, he sees Allison inside a ring of fire. After his conversation with Sam, they begin to fight. Through most of the fight Sam seems like the clear winner but Matthaius shocks him a couple of times. Before Sam could kil l him, he is saved by Scott and the others and Sam is forced to leave but not telling them he will kill them. When asked by Erica how he feels, he tells her never better.
In the episode Brake, he and the others go to the hospital to visit Quintus. Quintus tells them that Sam was killed. Surprised they sense the presence of members of the alpha pack. He takes Derek and leaves Isaac, Boyd, and Scott to protect Quintus. He and Derek find to twins, one female and the other male. They were the alpha twins Anna and Ian. Matthaius fought Anna while Derek fought Ian. During the fight she tells him that Sam was weak and had to die. She seemingly has the upper hand during the whole fight. Matthaius throws a smoke bomb at her that was filled with wolfsbane. After he beat Anna, Derek walked in but falls with someone behind. It was Kevin Sanchez, he beats Matthaius and tells him he is part of a game he is planning and then he knocks him out.
In the episode Solution, he was in his house working out and still recovering from his injuries. He was asked by Quintus about what he attends to do about the new alpha. He decided if he can't save him he will kill him.
In the episode Burn the Pain Away, he was laying in his bed thinking about the events that has happened and the people he met. When drifting to sleep he started seeing glimpses of his house burning. Quintus came in to try and calm him but Matthaius threw him with ease. They decide to inside Matthaius; head to see what happened that night. They were outside the house where Quintus said it was awesome and then they heard an explosion inside the house. He wastches as his parents are surrounded by flames that seem to come alive. His younger self walks i n and is peralyzed with fear. His brother runs in and grabs his younger self and take them out the house. He hears a voice and sees a figure hidden deep within the flames and it mentioned that it was after him and his brother. Afterwards he shares a vision with Quintus where he watches himself fighting Kevin Sanchez in a burning building. Quintus asks him did he see that and he responded that he will have to face him sooner or later.
In the episode Rising to the Occasion, he appeared alongside Derek, Scott, and Isaac to face Kevin and his pack. During the fight he battled the alpha Anna and slammed her to the ground. He was unable to save Isaac from being killed and he wept over the body of his fallen friend.
Matthaius is described as unpredictable, over-protective and stubborn, but also very warm, quiet, kind, smart, selfless, beautiful, empathetic, compassionate and caring towards others. He has a tendency to underestimate the people around him mainly because of his concerns for their safety. He has a very sarcastic sense of humor, especially when he is angry. He is also very self-reliant, intelligent, strong-willed, determined, brave and headstrong.
Matthaius is 5'10 and has a muscular built. He is a tall African American who has been said to be quite handsome.