Cow1337killr

Cow1337killr is a player spoof of an adventurer that makes numerous appearances in Runescape.

Appearances

 * He can be seen in the cutscene during the Animal Magnetism quest. He kills an Undead cow, and after being shooed away, he attempts to kill a Sneaky undead fowl during a cutscene. However, he hits a zero as the chicken dodges his attack, and deciding he'd be safer with Alice's husband, runs straight toward him.

Trivia

 * His name is leetspeak for Cow elite killer.