The Groom

The Groom is a rare enemy added in the 1.0.4 patch. It spawns only at night, like any other zombie. It will only appear during a Blood Moon.

Trivia

 * The fact he's an undead groom may be a joke referencing the Corpse Bride story or the jewish folklore in which it's based.
 * Until the 1.0.5 patch he was not correctly coded into the game and could not be spawned without third-party mod software.