Complex sentence: The show was hosted by Freddy Krueger, with Robert Englund reprising his role from the films, who was more of a background character, but he did show up occasionally to influence the plot of particular episodes.
Split into simpler sentences: The show was hosted by Freddy Krueger, with Robert Englund reprising his role from the films. Freddy played more of a background character, but occasionally showed up to influence the plot of particular episodes.