- Has a dog named Zero the Lord Destroyer.
- The Lotus Elise is his favorite type of automobile (as of June, 2005).
- Sang a song as the character Fūma Monō while working on the X television series in 2001-2002. The song, Yakusoku (or Promise in English), was also sung by Junichi's co-star Kenichi Suzumura for a pair of CD singles used to promote the first episode of the series (which was released on DVD before the rest of the show was aired). Although the song was not intended for use in the show, it became popular with fans who bought the CDs anyway.
- Performed a song and acted in the Kidô senshi Gundam Seed Destiny (Mobile Suit Gundam SEED Destiny) Suit CD vol. 7 drama CD as his character Sting Oakley. The song, Eden of Necessity, was written for the character, but was not used in the series.
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