Guest Stars John Neville voices Eternity Elizabeth Shepherd voices Infinity Camilla Scott voices Shalla-Bal Gary Krawford voices Thanos Credit Only Cedric Smith voices Various Jennifer Dale voices Various Alison Sealy-Smith voices Various Norm Spencer voices Various Colin Fox voices Various Aron Tager voices Various Robert Bockstael voices Various Tara Rosling voices Various Marc Strange voices Various James Blendick voices Various Uncredited Roy Lewis voices Ego the Living Planet