The Master is a recurring character in the British science fiction television series Doctor Who and its associated spin-off works. The character is a renegade alien Time Lord and the archenemy of the title character the Doctor. The Master has been played by multiple actors since the character's introduction in 1971.
The Master appeared as a main character of the 1996 Doctor Who television movie, played by American actor Eric Roberts. In the prologue, the Master (portrayed briefly by Gordon Tipple) is executed by the Daleks as a punishment for his "evil crimes". But before his apparent death, the Master requests his remains to be brought back to Gallifrey by the Seventh Doctor. However, as posited in the novelisation of the television movie by Gary Russell, the Master's self-alterations to extend his lifespan allow him to survive his execution by transferring his mind into a snake-like entity called a "morphant". This interpretation is made explicit in the first of the Eighth Doctor Adventures novels, The Eight Doctors by Terrance Dicks, and also used in the Doctor Who Magazine comic strip story The Fallen, which states that the morphant was a shape-shifting animal native to Skaro. Using his morphant body to break free from the container holding his remains, the Master sabotages the TARDIS console to force the vessel to crash land in San Francisco at the start of Earth's new millennium. From there, the Master has the morphant enter the body of a paramedic named Bruce to take control of him. However, the Master finds his human host to be unsustainable as the body slowly begins to degenerate, although the Master has the added abilities to spit an acid-like bile, both as a weapon and to mentally control victims as an alternative to his usual hypnotic abilities. The Master attempts to access the Eye of Harmony to steal the remaining regenerations of the Eighth Doctor (Paul McGann), but instead is sucked into it and supposedly killed.

Q: Who was executed?
A: the Master
Why is the Master executed?
as a punishment for his "evil crimes as a punishment for his "evil crimes". as a punishment for his "evil crimes". punishment for his "evil crimes". as a punishment for his "evil crimes".
as a punishment for his "evil crimes".