The episode was substantially rewritten from its original iteration as a lighthearted story to a more somber tale with serious moral and ethical implications. Tom Wright guest stars as Tuvix to lend more credence to a unique new character that consists of equal parts Tuvok and Neelix. Both director Cliff Bole and Wright himself had reservations about the latter's take on the character, and despite a perceived lack of support, Wright still praised the "Voyager" cast and crew. Both the story and performances of "Tuvix" were lauded by the production team and critics alike.