"Doctor Who: The Ultimate Foe" refers to a serial from the British science fiction television series, Doctor Who. This storyline, presented as a six-part adventure, originally aired in 1986 and marked the final appearance of the Sixth Doctor (played by Colin Baker) until the 2013 minisode, "The Night of the Doctor." The serial's main antagonist is the Master, portrayed by Anthony Ainley. This VHS cover represents the home media release of this specific Doctor Who adventure for video cassette viewing. The serial is significant in Doctor Who history due to its resolution tying up many loose ends from previous stories involving the Master and the Cybermen, as well as marking a shift in the overall direction of the series.