Traveling Merchant

The Traveling Merchant is a unique NPC vendor who randomly visits the player's town for one day. His inventory is randomized and different every visit, selling 4-10 (average 5.5) different items (4-11, average 6 in Expert Mode) listed below.

In order for the Traveling Merchant to spawn, at least 2 other NPCs must already be present. The Guide counts as one of these, but the Old Man and Skeleton Merchant do not. He won't spawn during Events (except Rain and Slime Rain). He does not require his own house in order to spawn, and will instead spawn near existing NPCs, spending the day walking around near them.

Once the criteria are met, the Traveling Merchant has a 25% chance (1/4) of spawning each day, appearing at a random time between 4:30 AM and 12 PM. He generally stays for only one day at a time, after which he leaves at 6:00 PM. He despawns if the world is vacated before that time, although in the mobile version, leaving the world and re-entering it will reset his inventory instead of causing him to despawn.

If threatened by enemies, the Traveling Merchant will defend himself with a Revolver. Once Hardmode begins, he upgrades to a Pulse Bow.

Trivia

 * Many of the things he sells are of Asian origin, often from the Qing Dynasty.
 * The name Willy is most likely a reference to the play, "The Death of a Salesman", by Arthur Miller, where the main character is named Willy Loman and is a traveling salesman.
 * One of his quotes is a reference to a man who yells "One pound fish!" to sell fish, popularized by the song "One Pound Fish".
 * The quote "Combination hookah and coffee maker! Also makes julienne fries!" Is an allusion to the popular animated disney film "Aladdin".
 * The item "Not a Kid, Nor a Squid" is likely a reference to Splatoon, a Wii U game with a hyperactive advertisement featuring the line "You're a kid, you're a squid" due to the transformative nature of Inklings, as a play on the depicted Moon Lord's Cthulhu-esque nature.

Quotes

 * "Combination hookah and coffee maker! Also makes julienne fries!"
 * "Meet me behind [Name of Guide]'s house in about three hours, I think I have something you will find very appealing."
 * "A thrift shop? No, I am only selling the highest quality items on the market."
 * "I don't refund for "buyer's remorse..." Or for any other reason, really."
 * "I only sell what I can get. [Name of Clothier] keeps hounding me for exotic clothing." (Only if Clothier is present)
 * "If you're looking for junk, you've come to the wrong place."
 * "I sell wares from places that might not even exist!"
 * "That [Name of Merchant], he really has no appreciation for a really good deal." (Only if Merchant is present)
 * "Hmm, you look like you could use an Angel Statue! They slice, and dice, and make everything nice!"
 * "Come and have a look! One pound fish! Very very good! One pound fish!" (Possibly a reference to the song One Pound Fish.)
 * "Buy now, and get free shipping!"
 * "You want two penny farthings!? Make it one and we have a deal."

Names
The Traveling Merchant may have any of the following names:

History
Странствующий торговец

Marchand Itinérant