Knight is Shobu's mysterious and soft-spoken mentor. In the English &quot;dub&quot;, his inner monologue is a source of much of the show's mature and subtle humor. Despite being Shobu's mentor, he is usually unable to assist his student in times of need due to either Shobu's stubborn attitude or Knight being unable to show up at the scene. Knight does not appear in the manga, although the manga character NAC is similar to him. On one occasion, Dr. Root had Knight take on a &quot;Dragon Mask&quot; persona to duel Shobu in order for him to reclaim his tournament pass. Knight character is loosely based on the manga only character NAC.     Knight has a very strange personality. He is very mystic and very little is known about his past. He has a crush on his secretary and is scared to ask her to go out with him. Saiyuki has a huge crush on him. He tried to help Hakuoh when he was in the temple, but Hakuoh took it that he was jealous.    Knight is gentle and kind. He is a skilled duelist. He knows a lot about dueling. In the second part of the anime, we see him in a pink shirt and without his customary goggles.  

The 1st Duel Masters series.<br>
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A mysterious organization is interested in fledging duellist Shobu Kirifuda's ability to bring Duel Master creatures to life. With the support of his friends, Shobu duels with passion, discipline, and heart as he strives to be like his father and become the next Kaijudo master.
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(Source: Anime News Network)

He is known for playing tough or grouchy men in dubbed anime and video games. His career includes Hotohori in Fushigi Yūgi and Jin in Samurai Champloo. He also played numerous cameos and minor characters in Rurouni Kenshin, in addition to the major character of Hajime Saito. He also does Don Patch in Bobobo-bo Bo-bobo as well as Gabumon and other voices in Digimon.  According to Anime News Network, Thornton has the most credits of any male voice actor and he is second in total voice actor credits only next to Wendee Lee. He has been in nearly two hundred voice-over productions for Japanese animation.  Thornton is also well-known for having played many different minor voice roles throughout the Power Rangers franchise (and similar series such as VR Troopers and Masked Rider).  Thornton has also had experience with ADR direction. Currently, he is co-directing the ADR for the popular anime series Bleach alongside Wendee Lee.

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__Non-Anime Roles:__
- Altair Ibn La Ahad - Assassin's Creed (VG)
- Gosei Knight - Tensou Sentai Goseiger (Tokusatsu)
- Sakuya - Otori Rewrite (VG)
- Altair Ibn La Ahad - Assassin's Creed Revelations (VG)
- [Walter](https://anilist.co/character/184385/) - Shin Megami Tensei IV (VG)
- Jun Oda - Yakuza 0 (VG)
- Alfred - Bloodborne (VG)
- Olberic Eisenberg - Octopath Traveler (VG)
- Hooded Figure/Beelzebub - Granblue Fantasy (VG)
- [SilverAsh](https://anilist.co/character/175536/) - Arknights (VG)
- Boothill - Honkai: Star Rail (VG)
- Sylus - Love and Deepspace (VG)
- Noctis - Punishing: Gray Raven (VG)