You may wish to consult Chang for other, similarly-named pages. Dr Chang was an employee of the 3W Institute who maintained the mausoleum inside St. Paul's Cathedral. He met with the Twelfth Doctor and Clara Oswald when they were investigating the facility. Believing them to be government inspectors, he explained the history of 3W, dark water, and created a connection between Clara and Danny Pink inside the Nethersphere. After Missy activated the dark water tanks, which in reality contained Cybermen, she told Chang that she was going to kill him and to "say something nice". Despite his pleas, Missy disintegrated him. (TV: Dark Water) v • eThe Master's assistantsDelgado Ailla • Rex Farrel • George Trenchard • Krasis • Katya DabrowskiAinley Kamelion • Sabalom Glitz • Christopher Marlowe • Adam Mitchell • Midge • Shadow • The Master's AutonRoberts Chang LeeFallen Sato KatsuraMacqueen Sally ArmstrongJacobi Phila • Cole Jarnish • ChanthoSimm Lucy Saxon • Bill Potts • TopknotGomez Saffron • Seb • Dr. Chang • Yayani • Clara Oswald • Bill Potts • Nardole • AlitDhawan Daniel BartonUnknown Finsey Retrieved from "https://tardis.fandom.com/wiki/Chang_(Dark_Water)?oldid=2643508" Categories: 21st century individuals Human physicians The Master's assistants + cat Cancel Save Languages: Cymraeg Español Community content is available under CC-BY-SA unless otherwise noted.