Parker was the Victorian driver of Madame Vastra. He probably knew something of aliens or extra-terrestrial life forms. His employer was a Silurian, which didn't seem to bother him. He drove Vastra's carriage back from a venture in which Vastra had eaten Jack the Ripper. (DW: A Good Man Goes to War)
Behind the scenes
- Parker's name is a reference to the popular Gerry Anderson television series Thunderbirds. When Vastra thanks Parker after dispatching Jack the Ripper and tells him to bring the carriage round, he says "Yes, m'lady"; this was the phrase commonly used by and associated with Lady Penelope's chaffeur Parker from Thunderbirds. When he was asked by Lady Penelope to "bring the car around" he responded with "Yes, m'lady".