Something like Project Wolf Hunting or Rugal.

I love action movies/series with badass male leads who might be of questionable morality but aren't evil, especially if it involves revenge and some sci-fi elements. While Project Wolf Hunting was a little gorier than Rugal both are so much fun to watch. I also enjoyed Memorist and He is Psychometric ( I hated the ending) though this weren't quite as actiony as I'm looking for. OO also Loved the Sign but while I loved Tharn and Phaya neither of them are morally gray hahah. Anyone got any good recs?