There are several characters who are played by particular YouTubers.
“Sanna is a friend of Blaze and Gold. In episode 158, Sanna was looking for Blaze, but couldn't...Sanna
“Zaphrix is a member of Team Rocket. Zaphrix uses Ghost-type Pokémon, he used Dusknoir in episode...Zaphrix
“Mike is a character of Pokémon Gangster. His signature Pokémon is unknown, although his Raichu...Mike
“Elliot is a time traveller from the future. (more specifilly 10 years from the present day) His...Elliot