7. Austin Basis
What would Beauty and the Beast be without Austin Basis? A lot less funny, that's for sure.
8. Misha Collins
Misha Collins will be a series regular again on Supernatural Season 10. But he played less of a (still awesome) role on Season 9.
9. Mark Sheppard
Mark Sheppard has appeared on nearly every television series of all-time. But he's remained a valuable part of the Supernatual universe for years.
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