fight against the Force-sensitive Jedi. Grievous often heeds his mentor's advice and becomes known as one of the Jedi's most elusive adversaries during the Clone Wars. Grievous first appeared in Genndy Tartakovsky's Clone Wars before his character traits had been finalized for Revenge of the Sith. According to Tartakovsky, Lucas initially pitched Grievous to him as "this ruthless, totally capable Jedi killer," but later developed the character into "one of those old B-serial villains who does something bad ... twirls his mustache and then runs off." The series depicted Grievous as a nigh-unstoppable fighter capable of dispatching multiple Jedi simultaneously with ease, which contradicted the then-upcoming film's less powerful portrayal of the character. To reconcile these continuity differences, the series finale of Clone Wars sees Mace Windu crush Grievous' chestplate with the Force, damaging his internal organs and providing a reason for both his hacking cough and his weakened state in the film. However, The Clone Wars would later present Grievous with his cough throughout the entirety of its run. There remain numerous accounts of Grievous' backstory. Literature in the Star Wars EU written by Warren Fu, the original designer of Grievous, had the general's hatred of the Jedi stem from their role in the plight and enslavement of his people. A shuttle crash orchestrated by Dooku and pinned on the Jedi mortally wounds Grievous and leads to his reconstruction as a cyborg. The Clone Wars would later suggest that Grievous was denied the right to become a Jedi due to his lack of connection to the Force. Writers Dave Filoni and Henry Gilroy postulated that Grievous volunteered for cybernetic modifications to rival the Jedi that rejected him. In the series, Grievous' castle displays statues hinting at his gradual progression as a cyborg. Despite this, Filoni elected to keep Grievous' backstory ambiguous: "I tend to think of the episode "Lair of Grievous" as a look more into the mind of Grievous. How you interpret the story depends largely on what backstory you like. If you believe Grievous was shot down in a shuttle by Dooku and put back together, I think that story is there, it’s just that Grievous has invented this new "story" of choosing his alterations. If you don’t believe in the EU version of the story or didn’t like it, then perhaps this new revelation that Grievous was a warrior whose lust for power made him choose