The English voice acting was provided by voice actors from 4Kids Entertainment, the company who provided the English dub of Pokemon and Yu-Gi-Oh. Jimmy and Pink Monkey are voiced by Veronica Taylor, who provided the voice of Ash, Ash's mom, and May from Pokemon. Natalie is voiced by Rachel Lillis, who provided the voice of Misty, Jesse, and Jigglypuff in Pokemon. The professor and Spike are voiced by Dan Green, who voiced both young Yugi and adult Yugi in Yu-Gi-Oh. Specter, Blue Monkey, and Red Monkey are voiced by Greg Abbey, who provided the voice of Tristan in Yu-Gi-Oh.