Box Office Bomb: Tenkai Hen: Overture. It was originally meant to be a trilogy that would even show the return of the Gold Saints. However, these plans were obviously canned due to its enormous cost and poor reception.
Hideyuki Tanaka: Leo Aiolia, Dolphin, Pope Shion (ep 1), Wolf Nachi and the Narrator throughout the classic, first movie, Hades Inferno and Elysium arcs.
This troper, being Indonesian, recalled that back in the first airing of Saint Seiya Indonesian dub, the dub voice of Cygnus Hyoga is the same guy who dubbed Kotaro Minami/Kamen Rider Black.
Keep Circulating the Tapes: Despite its popularity, you'll never find Saint Seiya in English past episode 60 or any of the five movies and the Hades OVAs.
This trend continues to this day. While in Japan, all five Saint Seiya Movies were released in a set, the US will only have a set that features all but Tenkai Hen in it in 2013.
Ikki and Tatsumi despise each other, but did you know that the two actors who play them, Hideyuki Hori and Yukitoshi Hori are really brothers?
If a man sees an Amazon's face they either have to love them or kill them. Seiya and Shaina were forced into this dilemma, but in real life, Tohru Furuya and Mami Koyama did get married. Unfortunately it failed but they are still friends.
Troubled Production: The Hades Saga:Inferno and Elysium. Kurumada was so upset with Toei that he fired all five of the Bronze Saint voice actors,casted new ones, and got another studio to do the animation that was so bad that most of the scenes were mostly traced from the manga.
In the Manga, Scorpio Milo was to be Hyoga's Master. In fact, if you look closely, you can see the outline of Milo and not Camus◊. This probably explains why Milo was show early on speaking to the Pope as well as the attack that sank Hyoga's Mother's ship resembled a well-placed Scarlet Needle. Image taken from Mu's Corner.
Kanon was originally not in the Poseidon Saga, but due to Executive Meddling was put in as The Chessmaster of the entire thing. Had none of this happened, Kanon would have been the good counterpart to Saga instead of the two being evil. This was later fixed in Saint Seiya Next Dimension where there is one Good Twin and one Evil one.