- Celebrity Voice Actor: Hiruma voiced by Atsushi Tamura, member of the Manzai duo London Booth No.1 No.2 along with Ryo Tamura.
- Hey, It's That Voice!: Hey, Sena is Sora and Syaoran! You can tell by the hair. To add more brunets into the mix, in the dub he's also the teenage Ben Tennyson and Suzaku.
- The NFL sponsored an anime about American football in Japan — a very successful series.
- Yusuke Murata, the artist for the series, managed to win the Mega Man Robot Master design contest twice. He created both Dust Man from Mega Man 4 and Crystal Man from Mega Man 5. Incidentally, one of his friends created Star Man, also from '5.