Complex sentence: His identity as Count Dracula is also alluded to in the series, for instance, in the episode "The Musician", Mr. Gateman refers to him as "Count Dracula" when he comes to dinner.
Split into simpler sentences: His identity as Count Dracula is also alluded to in the series. For example, in the episode "The Musician", Mr. Gateman refers to him as "Count Dracula" when he comes to dinner.