Dr. Ronald Olsen is the leader of the gemini project and the main antagonist in the 2011 Disney movie The Suite Life on Deck. He is Dr. Spalding's twin brother. He was portrayed by John Ducey. This character article is a stub. You can help Disney Wiki by expanding it. Retrieved from "https://disney.fandom.com/wiki/Dr._Roland_Olsen?oldid=3500462" Categories: Character stubs Characters Adults Males Live-action characters Villains Scientists The Suite Life characters Siblings Reformed characters Twins and Triplets Disney characters Community content is available under CC-BY-SA unless otherwise noted.