Doppelgänger

Several times there has been characters who appear exactly like another character, as part of the story plot.

Coincidental doppelgängers

 * Abbot of Amboise and The Doctor (DW: The Massacre)
 * Ramón Salamander and The Doctor (DW: The Enemy of the World)
 * Strella and Romana I (DW: The Androids of Tara)
 * Ann Talbot and Nyssa (DW: Black Orchid, MA: The Sands of Time)
 * Peri and Queen Anne (but Queen Anne has a crooked nose) (BFA: The Church and the Crown)

Deliberate doppelgängers

 * The Daleks create a robot double of the First Doctor in DW:The Chase
 * The Chameleons adopted the appearance over several people including Polly (DW:The Faceless Ones)
 * General Scobie came face-to-face with his Auton replacement. (DW: Spearhead from Space)
 * The Zygons impersonate several people including Harry Sullivan (DW:Terror of the Zygons)
 * The Fourth Doctor, Sarah-Jane Smith, Sergeant Benton and Harry Sullivan all have robot doubles in DW:The Android Invasion
 * The Fourth Doctor and Leela are cloned in DW:The Invisible Enemy
 * Astra of Atrios and Romana II (DW: The Armageddon Factor)
 * Meglos and The Doctor (DW: Meglos)
 * Omega and The Doctor (DW: Arc of Infinity)
 * Duplicates abound in DW:Resurrection of the Daleks
 * Sharaz Jek creates android doubles of Major Salateen, the Fifth Doctor and Peri in DW: The Caves of Androzani
 * Dr. Who and The Doctor (NA: Conundrum, Head Games)
 * A clone of the Sixth Doctor (BFA: Project: Lazarus)
 * Martha Jones is cloned in DW: The Sontaran Stratagem

Other doppelgänger-like occurrences
Not quite real doppelgängers are the times that the Master has invaded and taken over a body, but the principle of looking like someone else remains.


 * Tremas (DW: The Keeper of Traken)
 * Bruce (DW: Doctor Who: The TV Movie)

People meeting themselves;
 * The TARDIS crew see potential future versions of themselves as exhibits in DW:The Space Museum
 * The Doctor (third incarnation) and Jo Grant meeting themselves in DW: Day of the Daleks
 * The Doctor (third incarnation), The Doctor (second incarnation) and The Doctor (first incarnation) (DW: The Three Doctors)
 * The Doctor (fifth incarnation), The Doctor (first incarnation), The Doctor (third incarnation) and The Doctor (second incarnation) (DW: The Five Doctors)
 * The Doctor (sixth incarnation) and The Doctor (second incarnation) (DW: The Two Doctors)
 * The Doctor (tenth incarnation) and The Doctor (fifth incarnation) (DW: Time Crash)
 * The Doctor (fifth incarnation), The Doctor (sixth incarnation) and The Doctor (seventh incarnation) (BFA: The Sirens of Time)
 * The Fifth and Seventh Doctors in MA: Cold Fusion
 * The Doctor (eighth incarnation) meeting his previous selves (EDA: The Eight Doctors)
 * The Doctor (eighth incarnation) finding The Relic (EDA: ''Alien Bodies)
 * The Master and Koschei (from an alternate universe) (PDA: The Face of the Enemy)
 * The Brigadier (1977) and The Brigadier (1983) (DW: Mawdryn Undead)
 * Fitz Kreiner and Father Kreiner (EDA: The Ancestor Cell)
 * Jason Kane and his clone (NA: Happy Endings)
 * Rose sees her younger self in DW:Father's Day
 * Mickey Smith meets, and eventually replaces, his parallel-world counterpart (Ricky Smith) in DW:Rise of the Cybermen/The Age of Steel.
 * The Ninth Doctor and Rose Tyler travel back in time to the day her father died. They later traveled back once again and saw themselves. (DW: Father's Day)

Other

 * Zagreus and The Doctor (BFA: Neverland, Zagreus)