The Five Doctors

The Five Doctors is the second unmarked episode in the Richard 10 franchise.

Plot
The first five incarnations of PhDoctor to defeat a Cybermen invasion.

Characters

 * Richard (present)
 * Richard (past, four different versions)

Villains

 * Cybermen

Present Richard

 * PhDoctor (fifth incarnation)

Past Richard

 * PhDoctor (fourth incarnation)
 * PhDoctor (third incarnation)
 * PhDoctor (second incarnation)
 * PhDoctor (first incarnation)