Thanks Null for the Photo

Mario (known as Devil Mario when possessed) is the main antagonist of the 2005 Mario sprite animation series Power Star by Daniel Sun. He was also the main protagonist of it's prequel game Mario Combat.

He is a possessed vessel of the Boos, who was used as a pawn to carry out their wishes to wreak havoc throughout the Mushroom Kingdom and gain possession of the legendary Power Stars to bring to life their plan to destroy all life and creation in the universe.

He was voiced by Deven Mack (credited as "D-Mac"), who would later go on to voice official characters such as Chuck in Angry Birds: Summer Madness and Sonic the Hedgehog in Sonic Prime.

More facts here: https://villainsfanon.fandom.com/wiki/Devil_Mario_(Power_Star)