Apocalypse

"Because of how many crazy wars and problems were happening in Wolfshire, Lucan chose us and also chose you. Koga and I were the first. We knew that because of how miserable the wolves of Wolfshire were, they cared little about solving dire situations to the point where everyone's grumpy over something they could easily solve, but chose not to."

-Apocalypse during Guardian Wolf

Apocalypse is a male black wolf and the first prophet of Wolfshire, sent with Koga.

Description
Before Guardians existed, there were very similar wolves called prophets. The prophets were chosen by Lucan to help in the land of Wolfshire, but were granted very few or no powers at the time. The first prophet to be sent was Apocalypse, a wise black wolf with a red diamond on the side of his muzzle.

Many other prophets were sent to Wolfshire and helped solve severe situations. After 10 were sent, Lucan decided that the prophets should be granted powers to help in the land. He sent down Guardians, with powers capable to solve more severe situations.

After this proved to be better, Apocalypse and Koga, the second prophet, were sent to Wolfshire a second time to help the wolves of Alpine Rock. Icebound was leading his pack in the March of Hunger, and the ice was cracking and would likely break the entire land. Unable to solve the situation without powers, Apocalypse and Koga asked Lucan to send a Guardian, and they were transformed into Crimson and Karoph, the future major Guardians chosen by Lucan.

Quotes

 * "Do not fret, guardian, you are here to fulfill your destiny. I am Apocalypse, but here, names do not matter. All that matters is that you and another wolf are the two guardians, and you must find out who the other one is."
 * "But you're a guardian. There is almost always two guardians, both with the spirits of the past prophets. Prophets were sent by Lucan a long time ago, and guardians were sent by Lucan and the past prophets to fulfill their destiny while helping others in dire situations as well."
 * "Nobody can be sure, Koga. We have sat here, asleep, secluded in this cave, until we were needed. But now we meet, yet it is as if I've known you for a very long time."
 * "It's our job to help in situations like these, as said by the god Lucan."

Trivia

 * Apocalypse was sent by Lucan at the same time Koga was.
 * Of all ten souls of the past prophets, Apocalypse's is the strongest in Crimson. As a result, Crimson is most similar to Apocalypse.