Mastered UI John

Mastered UI John (born: June 2)https://twitter.com/MasteredUIJohn is a Greek YouTuber who mainly makes content about Sonic the Hedgehog and Sonic.exe.
==History==
He created his channel with the name John Chaidos on March 22, 2018, and uploaded his now-deletedhttps://www.youtube.com/watch?v=zgxf23WRDjU&ab_channel=MasteredUIJohn video shortly after. Other than some exceptional videos, he has been making Sonic-related content ever since he created his own channel.
===Old channel===
John created his very first channel by the name of John Chaidos on December 2017. He only uploaded 2 or more videos playing on his handheld console. Unfortunately the channel got terminated in 2018 due to a mistake, including his google account.
thumb
On October 18th 2023, he managed to find his first video and re-uploaded it on youtube. 
==Trivia==
*His current profile picture was made by Yuna The Hedgehog.
==References==
Category:Animation YouTubers
Category:Gaming YouTubers
Category:Greek YouTubers
Category:Users who joined in 2018
Category:Verified YouTubers