Dr. Xavier Fitch

Dr. Xavier Fitch is a human character from the 1995 movie Species. He led that project to create Sil and later tries to kill her. Despite Sil being the main antagonist of the film, her amorality and lack of understanding makes her less. Dr. Fitch, on the other hand, makes many concious decisions that suggest that he is that actual villain of the film.

Biography
Dr. Fitch led several experiments that combined an alien DNA sequence with human ovums. He was successful in creating Sil, but, upon seeing her rapid aging and violent behavior in her sleep, decided to terminate the project and kill her. Upon her escape, Dr. Fitch compiled a team to track her down.