Alien

First appearing in the end of Season 3 and onto Season 4, he is shown as an Elite in blue armor, but never identified as a Covenant. He speaks in blarghs and honks, which are only understood by Andy. As for his actual name, he is referred to as "Crunchbite" by Caboose after he bit him, but no one actually figures out what his real name is, as he only communicates in Honks and Blarghs. In one episode, the Blue Team asked him what his name was to which he responded "Honk Honk". However, it was quickly pointed out by Tex that it was likely not his name because when asked if his name was indeed "Honk Honk" he responded by saying "Blargh", which could either mean yes or no.

The alien seemed to have wanted to claim the great weapon, to complete a great quest which would give the salvation and emancipation of his entire race. However, after learning that Tucker had claimed it first (and beating him repeatedly), he forced Tucker to complete the quest with him. Andy accompanied them, acting as a translator, and Church grouped Caboose with them. Tex followed after they left, being reminded of the possibility of a reward for the quest.

The alien guided the group across three main locations, the Burning Plains of Honka Hill, the Great Swamp, and the Freezing Plains of Blarganthia. In the burning plains, the alien created a lot of hype about defeating a monster, which was forgotten when the "monster" was already dead. They rested in the Great Swamp, in which Tex caught up to them. The alien and Andy set up a trap using Tucker as bait, attacking Tex when she appeared. Soon afterwards, they arrived at the Freezing Plains, which was the apparent destination. A base was the target for the alien, which had to be opened with the great weapon that Tucker had. To the surprise of everyone, an unidentified ship, portrayed by a Banshee was seen. The alien took off in it, to be shortly killed by Wyoming.

He also frequently stared at Tucker while he was sleeping, a habit which greatly disturbed him and that Tucker often complained about. It was later revealed that the alien had inserted a parasitic embryo into Tucker, which was born at the end of Season 4.