Complex sentence: Caan is the first Dalek seen to laugh (albeit insanely) in the BBC's revival of "Doctor Who"; however, it should be noted that the humanised Daleks in the classic series serial "Evil of the Daleks" are also heard laughing.
Split into simpler sentences: Caan is the first Dalek seen to laugh (albeit insanely) in the BBC's revival of "Doctor Who". However, it should be noted that the humanized Daleks in the classic series serial "Evil of the Daleks" are also heard laughing.