Disguise
The chameleon circuit provided TARDISes with a disguise which allowed them to blend into their surroundings. The Doctor's TARDIS was disguised as a police box in 1963, and was left stuck in this form as the chameleon circuit broke down. (TV: An Unearthly Child [+]Loading...["An Unearthly Child (TV story)"]) Bill Potts questioned the practicality of a disguise that had "pull to open" on it. (TV: The Pilot [+]Loading...["The Pilot (TV story)"])
Necros, a shapeshifter, once disguised himself as the Fourth Doctor. When the real Doctor encountered him, he complimented the "clever disguise". (TV: Streets Doctor Who advertisement [+]Loading...["Streets Doctor Who advertisement (TV story)"])
Skin suits were disguises which were used most notably by the Slitheen family. (TV: Aliens of London [+]Loading...["Aliens of London (TV story)"], World War Three [+]Loading...["World War Three (TV story)"], etc.)
Historians who had been allowed access to the "Monster Vaults" of the databanks in the Doctor's TARDIS observed that an Abzorbaloff could disguise their form with a morphic illusion and their voice by putting on an accent, but could never disguise their villainous intent. (PROSE: The Monster Vault [+]Loading...["The Monster Vault (novel)"])
The Saxon Master disguised himself as "Razor" when stranded on Floor 1056. When he met Missy, he noted that he "loved" disguises, asking if his successor continued to. (TV: World Enough and Time [+]Loading...["World Enough and Time (TV story)"])
Supergirl and E.T. were both "huge fan[s] of disguises", although the former believed that sometimes, all one needed for this was a pair of glasses, using two images of Superman and Clark Kent as an example, with Wyldstyle not realising the two images depicted the same individual. (WC: Supergirl Meets E.T. [+]Loading...["Supergirl Meets E.T. (webcast)"])
