Eric Roberts took over the ole as the Master in the TV Movie

The producers wanted an American actor to play the role and Eric was an ideal choice

At the beginning of the story the Master assumed form of a snake as his other form had been exterminated by the Daleks. He caused the TARDIS to crash land on Earth.

Later he escaped from the TARDIS and took Bruce the Paramedics body to help him get a new body, later he realised the body wouldn't last long and decided to take the Doctors remaining lives.

The Doctor was captured and the Master nearly succeeded but was stopped by Grace who set the TARDIS back in time to erase history.

Sir Derek Jacobi was the Master in the Animated feature Scream of the Shalka and the producers of the 2005 show they invited him back to star in episode 11 of series 3 "Utopia", after that John Simm, the leading actor from Life on Mars took over from the end of episode 11 to episode 13..