10 Minor TV Characters Who Stole the Show (via Mental Floss)
5. Ben Linus, LOST
Michael Emerson was invited to make a guest appearance on LOST based on the strength of his Emmy-winning portrayal of a serial killer on The Practice. That initial appearance in the episode “One of Them” led producers to invite him back for three more episodes, still billed as a “guest star.” His morally ambiguous Benjamin Linus (originally known as Henry Gale) struck a chord with viewers, who loved to hate him, and as of season three, Emerson was offered a contract and became a series regular as well as the leader of the Others.