Pride Comes Before a Brawl - S1-E7
Continuity mistake: When Hercules and Nemesis are in the boat discussing her assignment, the shoreline behind Hercules doesn't move behind him as they speak (so the boat is lying still). But whenever the camera cuts to Nemesis, you see the background slowly moving away (so the boat is moving).
Answer: It's a matter of plot. Having multiple characters who basically would have the same purpose, to kill Hercules, complicates and confuses the story line. It would lose the focus on the characters themselves and the interaction between them. In film and literaturea, characters, plots, scenes, etc. have to be crafted in a way that serves the story in an understandable and satisfying way for the viewer.
raywest ★