Angler

The  is an NPC introduced in the 1.2.4 patch. He is located in the Ocean Biome, and can be found sleeping on the beach, or sleeping in the water, and must be "rescued" (right-clicked on) similarly to the Stylist, Mechanic, Goblin Tinkerer, and Wizard. He does not sell anything, but will give out Fishing-based Quests. He will move into standard NPC housing.

Trivia

 * He may be a young boy due to his smaller size, and the nature of some of his quotes.
 * Instead of saying "[NPC's name] was slain," it will say "[Angler's Name] has left," and the Angler disappears into smoke if you see his death. This might be because the implication of a little boy dying would be too brutal.
 * The Angler seems to give a lot of information about the biology of certain Terraria mobs, a topic that has never been mentioned before in Terraria. For example, he refers to Pixies as sometimes being born with too many wings, and claims that Wyverns are born as tadpoles, making them an extremely large, airborne species of amphibian.

Bugs

 * Very rarely, the Angler may walk out of the map before you "rescue" him, making him unobtainable.
 * He can sometimes be found sleeping on the ocean's surface instead of the beach; when a player attempts to talk to him, he will sink.