Richard Horvitz was chosen for the series role because West 's voice was too recognizable , according to Invader Zim creator Jhonen Vasquez during DVD commentary .
West was the voice of Zim in the original pilot for Nickelodeon 's Invader Zim .
Richard Horvitz was chosen for the series role because West 's voice was too recognizable , according to Invader Zim   creator Jhonen Vasquez during DVD commentary .
West was the voice of Zim in the original pilot for Nickelodeon 's Invader Zim .