Matthew was an Other who seemed to have some medical experience. Matthew is credited as a character in some episodes, while in others he appears as a part of the background cast.
On the Island
Matthew was first seen when he was a member of the party that captured Michael and brought him to the Decoy village, and at the Pala Ferry. (2x22) (2x23)
Later Matthew was part of Colleen's strike team which was sent by Ben to capture the survivors' sailboat. (3x02)
With the assistance of Jason, he administered an injection into Sawyer's chest in the Hydra operation room. Later, he and Jason accompanied Ben and Sawyer on their journey to Hydra Island lookout. (3x04)
Matthew was one of the Others who was hit by a rock from Alex's slingshot the day she stormed the work camp. (3x06)
Matthew was a part of the group Kate watched donning gas masks while preparing to leave The Barracks, and later appeared at the second camp. (3x15)
Matthew was one of Pryce's "ten best men" who took part in the raid on the castaways' camp. However he was shot in the chest and killed by Jin during the raid on the losties camp. (3x22)
- Matthew was killed in the beach raid by Jin along with Luke. Matthew and Luke are the names of the ones who wrote of two self-named the Gospels in The New Testament of The Bible.
- "Matthew" was the code to get the clue for season 4 (number of Oceanic) in the game find815. However, it was a reference to Matthew Abaddon.