Walter

Walter is a Shop NPC located in the back of the Gunpowder Mines in the Deep Caverns.

The cracked wall behind him can be blown up with Superboom TNT to reveal a hidden Fairy Soul.

Dialogue

 * With the right tools, you can get through anything!

Trivia

 * Walter is also known as the Boomer NPC, which likely refers to the "OK Boomer!" meme that was popular during its release.
 * Walter's skin, originally titled Expert Demolitionist was created by DinowCookie on Planet Minecraft.