Ian

Ian Chesterton is the rather clumsy boyfriend of Barbara, a granddaughter of the inventor Dr. Who.

Visiting her at home one evening, he inadvertently activates the Doctor's new invention, TARDIS, which then whirls them off to an alien planet. Here, they have to help one race, the Thals, defeat the other, the Daleks, who intend to envelop the already ravaged planet in radiation in order to survive regardless of the death of the others.

The character is loosely based on that of Ian Chesterton, played by William Russell.