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Gunther is the Doctor's cat, living with her aboard her TARDIS. She is female, though may be subconsciously named after a companion erased from history by a previous incarnation of the Doctor.

Behind the Scenes[]

Companions of the Doctor
Our Doctor Gunther (cat)MillieTravisRomanCarrie
Previous Doctors AdricGuntherRomana
Live Show Companions
(Listed in order of appearance)
Jack HarknessDonna NobleK9River SongPeriAmy PondNardoleTurloughRory WilliamsMandy's Dad, EddieKing James I / MissyThe War IanThe War TeganThe War Craig & The Oncoming Stormageddon