Doctor Who: Time of the Daleks – Second Doctor & Sixth Doctor

From BoardGameGeek:

This expansion allows a player to add and play the Second and Sixth Doctors to the base game of "Doctor Who: Time of the Daleks". Each of these Doctors come with their own set of cards, figures, dilemmas and locations which can be added to the core game. In addition this expansion also allows an additional two players to the core game increasing the player count from four to six.