Kevin Lerdwichagul

Kevin Lerdwichagul (born 21 June 1994)(aged 24) is SMG4's true older brother, who first appeared in Mario in real life!? (200 vid special). According to him, SMG4 has never completed a Zelda game. Kevin is a "true Zelda fan" who has played all the games.

Hobo Bros.
Kevin has made a bigger role in Hobo Bros, as the main character with his brother Luke. Together, they play games and mainly troll around with each other in a failed attempt to win against each other.

Glitchy Boy
As mentioned in one of the mail videos, SMG4 and Kevin created a company called Glitchy Boy. The company is responsible for the management of SMG4 and Hobo Bros.

Trivia

 * He has appeared in every episode of the SMG4 show as well as The Hobo Bros.
 * As shown in the "MY PRAYERS HAVE BEEN ANSWERED - SMG4 Mail Time" vid, he is a fan of Yu-Gi-Oh.
 * At the time of his first appearance, he was thought to just be SMG4's friend however in The SMG4 Show, he was revealed to be his brother.
 * Kevin is a Zelda fan.
 * He is the voice actor for Fishy Boopkins
 * In an episode of the Hobo Bros in one of the NSMBW gameplays, "THE BIRTH OF FISHY BOOPKINS AND THE DEATH OF BOWSER JUNIOR", Kevin confirmed that he doesn't like Fishy Boopkins (yet doesn’t loathe him).
 * Kevin loves Anime.
 * He used to have a DeviantArt account called "oceanweapon" where he posted comics, drawings and animations related to anime and video games, particularly Zelda and Fire Emblem.
 * In the Hobo Bros episode "This Made SMG4 Laughed Till He Cried... || Mario's Face HD", he announced that he and his girlfriend (Ellen) are getting married.
 * He has not yet announced when the wedding is as of October 9, 2018.