Well, tonight was a GREAT episode. I thought one of the best so far this season. lots of twists and turns.
Naevia is doing my head in. I used to LOVE crixus, she is yoko onoing that man! Sparty was great as per usual. I love the fact that even the legendary crixus.. gannicus.. they wont cross sparty.
I liked seeing Saxa's character develop too, when she came in, she was every bit as savage as the rest, even in todays, she agreed with what the others were doing..but because she had been told to deliver to sparty, she was willing to die to get that done.
I'm really enjoying this season, its kind of like seeing a movie after you've read the book though.. because well, we all know how it ends. assuming Starz stick loosely to history (and thus far it's been fairly accurate I feel)
In short, Episode 4 was a set piece. the first 3 set the season up. this one was the one that shows the emotions behind the past not just 3 episodes.. but everything that the slaves question about sparty's leadership.. the way crassus is evolving.. not only with his son, but his tactics with Caesar.. I have a feeling we will have another few GREAT episodes like this ahead of us.
As for build, I could be wrong.. since let's face it there isnt a huge amount of details from those times, but spartacus was always of a slender build was he not? it was almost a trademark of Thracian men. Gaul's however especially ones the size of crixus (he's a little man!) were much stockier. in the same vein Agron is tall and well built. as was Sedullus and Lugo Nemetes etc.. It's not perfect, but I think if they WANTED Liam to be bulked up.. he would've been.
EDIT: some food for thought. Some pictures of Liam PRE Spartacus where he wasnt toned up atall.
Another here : http://www.imdb.com/media/rm3704522240/nm2553987 - you can see from his face alone how much he has gained.