Though the original idea of the manga and the anime has been taken, Netflix has not taken any of the main characters of the manga, because 'Parasyte: The Grey' is not a direct adaptation. It borrows the plot and narrative elements from the manga, it develops the story independently and so the treatment of the story and the main characters including the protagonist are also different.
Disclaimer : Mymoneytimes implements extreme caution and care in collecting data before publication. Mymoneytimes does not liable for the adequacy, accuracy or completeness of any given information. Hence we are not liable for any kind of direct or indirect loss caused by the use of such information.