Eon

Eon is the original member in the Eon family lineage, wielder of the Iron Fist, and eventually appears as a projection to offer his remaining chi to Marty (Eon Kid) through a seal he left binding his remaining chi in the Temple of the Iron Soul[1].

Description
Eon's armor was bulky, featuring large spherical shoulders, a wide chest-plate, oversized leg guards, and the Iron Fist. It was red with some navy blue and darker red highlights, a kanji on it's back-plate, and glowing yellow eyes.

Personality
Eon, for what little is shown of him, seemed very dutiful. A good example of this is when he shows willingness to sacrifice himself to destroy The General in order to save the world from the second robot war's devastation continuing.

History
Eon was the original member of the Eon family and wielder of the Iron Fist. It should also be noted that he destroyed the General, ending the Second Robot War. This event, however, lead to his demise.

Trivia

 * In episode 11 (Confronting Fate), Gaff calls Marty's father Eon. This statement is, however, inaccurate, as Eon lived 100 years before the show's events take place.

Reference
[1] Episode 21 The General Awakes