Walt appears in thirty episodes of Lost; 27 in seasons one and two as a series regular, and three more episodes as a guest star. He also features in the Lost epilogue ''The New Man in Charge''. Throughout the series, he is the only child main character. Initially, Walt and Michael have a dysfunctional father-son relationship, causing Walt to form friendships with other survivors, such as Locke and Sun. Walt leaves the island on a raft with Michael and two other survivors during the episode ''Exodus'', but is kidnapped by a group of hostile island inhabitants known as the Others. Walt is then released by the Others in the episode ''Live Together, Die Alone'', who claim that he was ''more than (they) could handle'', and he and Michael leave the island at the end of season two.

does michael ever get walt back on lost?
yes