Henry

Henry is a Knight of Hanoi from Yu-Gi-Oh! VRAINS who wound up becoming part of Daigo's review segment Daigotaku after his debut in Daigo Riffs.

Daigotaku
Henry made is debut on Daigotaku during the Bloodivores review episode. He interrupted Daigo, being told to leave almost immediately after.

Daigo Riffs
Though not officially named, Henry debuted in the first episode of Daigo Riffs, with a comedic bit of the line "You use Cyberse? How unexpected!" that was used in the actual second episode of Yu-Gi-Oh! VRAINS.

Trivia

 * Henry is clearly inspired by the Old Man meme that Phelan Porteus, another online reviewer, uses.
 * This meme was even referenced during the first Daigotaku Reports.