The series was directed by Nagahama, with character designs by Yoshihiko Magoshi, scripts by Yasuhiro Suzuki and music by
Trevor Horn.[3][5]9nine sing the end titles song and also appear as themselves in the show.[3][6]
A 21-track soundtrack album, The Reflection: Wave One – Original Sound Track, by
Trevor Horn was released in Japan, the US and UK.[13] A limited edition version in Japan adds three bonus tracks. These are also available as the B-side to a digital single, "Sky Show", released in the US and UK.
The end theme, "SunSunSunrise", is sung by
9nine, produced and co-written by Horn, co-composed by Simon Bloor and Cameron Gower Poole, and with lyrics by
Kohei Tsunami.
^"長濱博史の夢がかなう! NHK新アニメ「ザ・リフレクション」は新しい映像体験" [Hiroshi Nagahama's dream comes true! NHK's new animation The Reflection is a new visual experience]. Web The Television (in Japanese).
Kadokawa Shoten. 6 July 2017. Retrieved 12 February 2024.
^"アメコミ界の巨匠スタン・リー&「蟲師」長濱博史の共同原作アニメ「THE REFLECTION」制作決定" [Production of THE REFLECTION, an animation co-created by American comic master Stan Lee & Hiroshi Nagahama of 'Mushishi', is confirmed]. eiga.com (in Japanese). 11 November 2015. Retrieved 12 February 2024.
^"スタン・リー×長濱博史のタッグ作、本格始動 UK音楽の巨匠トレバー・ホーンも参加" [Stan Lee and Hiroshi Nagahama's tag-team anime is in full swing, with UK music maestro Trevor Horn also taking part]. eiga.com (in Japanese). 13 November 2016. Retrieved 12 February 2024.
^"9nine、本人役で出演のスタン・リー総指揮アニメに「涙が止まらなかった」" [9nine member says 'I had tearful eyes' at the Stan Lee executive-produced animation in which they play themselves]. Natalie (in Japanese). Natasha. 6 July 2017. Retrieved 12 February 2024.
^"ザ・リフレクション:アメコミを「そのままアニメに」 長濱監督が語る映像表現 スタン・リーへの思い" [The Reflection: Director Nagahama talks about his thoughts on Stan Lee, "straight from the American comics into animation"]. MANTANWEB (in Japanese). 22 July 2017. Retrieved 12 February 2024.