My own Additional Characters:

Name: Assassin Aharon
Age: Unknown
Gender: Male
Outfit: A black tuxedo with a white, blood-stained shirt. His hair is black and his eyes are a dark red.
Race: Human/Demon
Weapon: Anything evil, but prefers to use his blood-stained sythe which he has used to kill millions.
Bio: For every hero, there is one who follows the darkness and Assassin Aharon is no exception. After attempting to destroy planet Earth three times, but his plans were thrawted by Joshua and his friends. Killed in battle against Joshua when they were fighting in his own dimension where his memories exist, he vanished...but being in Joshua's memories, caused him to come back. No matter how many times he falls, he will return...
Powers: Darkness, Hell-Fire, Oblivion

Quote: "Joshua, you don't realise that soon, your blood will be on the ground, your body and mind broken, and your remains be thrown into the depths of oblivion..."

Name: John Darken
Age: 35
Gender: Male
Race: Human
Outfit: A suit of black, blood-stained armor. His eyes are also red, his shirt is grey as well as his trousers.
Bio: Joshua's father. Abandoning him and his siblings at an early age, he has been regaining his powers of darkness. Thrawted for trying to destroy the Earth and our dimension, he was defeated, but spared. Humliated, his rage and powers grow. And soon, he will make his son pay...
Powers: Darkness, Earth, Dragon

Quote: "My son, you disappoint me...I have embraced the darkness, yet you and your brother do not. Perhaps it is time, a lesson should be taught...Yes...It is this...The Darkness...will eventually consume you...until you are nothing but what you swore to destroy..."