Complex sentence: Tim had also played the character in the stage adaptation on Broadway, and this episode is the second time that he had parodied the character, the first being in the second season episode, "Mettle," of the British series, "Spaced".
Split into simpler sentences: Tim had also played the character in the stage adaptation on Broadway, and this episode is the second time that he had parodied the character. The first time was in the second season episode, "Mettle" of the British series, "Spaced".