Here's the start of a long list of Spartacus Comic Con Interviews. This page will be updated as the new interviews are uploaded.
Cast Interviews
Liam Interview
http://ca.ign.com/videos/2012/07/13/spartacus-tv-series-liam-mcintyre-interview-comic-con-2012
Steven Interview
http://ca.ign.com/videos/2012/07/13/spartacus-tv-series-steven-s-deknight-interview-comic-con-2012