Lost

Michael Dawson was one of the middle section survivors of Oceanic Flight 815. He had parental issues with his son, Walt, but the two bonded during their time on the Island, and attempted to escape by building a raft. After Walt was kidnapped by the Others, Michael ventured a rescue, but was captured himself. He shot dead Ana Lucia and Libby in order to release Benjamin Linus from captivity, and caused the capture of Jack, Sawyer and Kate, when he made a deal with the Others. After leaving the Island on a motor boat with Walt, Michael returned to Manhattan, but racked with guilt, he became estranged from Walt and turned suicidal. Ben and Tom arranged for Michael to go undercover as a saboteur on the freighter Kahana, posing as a deckhand named Kevin Johnson. He was aboard the freighter when the C-4 bomb was found, and he froze its battery with liquid nitrogen to delay its detonation long enough for the Oceanic Six to escape, but the bomb eventually exploded, apparently killing him.