Before modern anime, G-Force (Japan's Science Ninja Team Gatchaman) was crucial for anime's early Western popularity, predating even Super Sentai with over a hundred episodes.
Star Blazers, adapted from Space Battleship Yamato, showcased anime's potential in the West with its complex, long-running plots and deep character development.
Marchen Awakens Romance (MAR), a battle shonen by Flame of Recca's creator Nobuyuki Anzai, found success but never completed its full run on Toonami.
Haru Glory's quest to collect Rave Fragments on Toonami was a mid-2000s hit, but Rave Master eventually became overshadowed by other popular battle shonen series.
Zoids, a franchise predating Pokémon, saw a Toonami revival in the early 2000s with Chaotic Century, but its popularity ultimately faded after the mid-2000s.