Here are 8 videos from James Marsters Slayer ItaCon Q&A panel; with thanks to LaTaki3:
( Panel James 1 )
( Panel James 2 )
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( Panel James 5 )
( Panel James 6 )
( Panel James 7 )
( Panel James 8 )
( Panel James 1 )
( Panel James 2 )
( Panel James 3 )
( Panel James 4 )
( Panel James 5 )
( Panel James 6 )
( Panel James 7 )
( Panel James 8 )