Lost/Samuel

Samuel
Lost
Actors	Titus Welliver Ryan Bradford (flashback)
First Appearance	1x01 - Pilot (1) (as smoke monster) 5x17 - The Incident (1) (as himself)
Last Appearance	6x15 - Across the Sea (as himself) 6x18 - The End (as John Locke)
Series Billing	Series: Guest
Episode Count	3
Notable Episodes	6x09 - Ab Aeterno 6x15 - Across the Sea

Samuel, often referred to as "the man in black" is Jacob's twin brother who turned into the smoke monster. He is portrayed by primarily Titus Welliver and appeared in three episodes as himself and an unknown number of total episodes because it isn't certain which ghost appearances were him and which were actual ghosts.

Episode Appearances

1. 5x16 - The Incident (1)
2. 6x09 - Ab Aeterno
3. 6x15 - Across the Sea (also as a teenager, played by Ryan Bradford)