The fact that Tauros is never metioned until "Old Ares Had A Farm", when Xena said that her and her two brothers used to gather around the fire. He isn't even mentioned whenever Xena talks about Lyceus! In "The Haunting Of Amphipolis", Xena sees a vision of when Lyceus was killed. Cyrene says "He was the only thing I had" and then slaps Xena. What about Tauros? A character who is this closely related to a main character of a show can't be this overlooked, surely.
Another thing is how much they used the same actors for different characters! For example, the man in "Callisto", Melas, who lost his son was played by Ian Hughes. He also played Mac in "Send In The Clones" and Diomedes in "The Black Wolf". So that's three characters in all and still it's too much! This happened alot throughout the series, and it was a very big inconsistoncy that bugged me a lot throughout the show's run.
Taurus isn't mentioned much after Death Mask and that bothered me and you're right, he's not even mentioned when Lyceus is spoken about. as far as the characters actors playing more that one character, i'm noticing it more and more every time i re-watch the series. for example Ceasar, also plays cupid...like we wouldn't pick up on that, especially with the characters being complete opposites. one loves war and conquest, the other is...Cupid. also the barbarian from The Quill is Mightier plays in Fins Femmes and Gems. Michael i think plays a few different parts. and i think queen Melosa from Hooves and Harlots was the one that played in Animal Attraction or whatever. There's quite a bit of it, but...the show is still fantastic so who cares lol