Guest Stars Jim Ward voices Professor Charles Xavier Tom Kane voices Erik Lehnsherr / Magneto Gwendoline Yeo voices Domino Roger Craig Smith voices Forge Jim Ward voices Sentinels Gwendoline Yeo voices Master Mold Kevin Michael Richardson voices Bishop Tara Strong voices Marrow Phil LaMarr voices Bolivar Trask Liza Del Mundo voices Lorna Dane / Polaris Roger Craig Smith voices Hellion Jim Ward voices Rover