The "Saga of Earth". An obese boy who likes hamburgers and is a very perceptive friend of Shu and of most situations the group gets into. His Legendz is Garion the Griffin. Mac is very kind and isn't particularly upset by anything.  (Source: Wikipedia)

When a crafty toy company "Wiz" also known in this show as Dark Wiz Company, finds crystals with the faint DNA of monsters known as "Legendz" are found and made into a battle game.<br><br>
A young boy named Shu receives one these crystals known as "soul figures" from his father after a baseball game. Legendz rapidly became popular and more and more children played it. Wiz employeys start to track down Shu for his special soul figure, for his soul figure can revive real legendz not just the little kiddy digital images! How will Shu fight his way to victory and claim this soul figure as his own?<br><br>
(Source: TV.com) 

Spanish voice actor who puts his voice to Tony Tony Chopper and more characters from animes as One Piece, Detective Conan, Gintama, Bobobo...    http://www.eldoblaje.com/datos/FichaActorDoblaje.asp?id=23298

Mike McField