Adam Arkin

Henry Rollins' neo-Nazi movement on Sons of Anarchy has some reinforcements: Adam Arkin will join the FX series as another white supremacist this fall, TVGuide.com has confirmed.

Arkin will play Ethan Zobelle, a small business owner who arrives in Charming, Calif., and soon clashes with Ron Perlman's Clay Morrow, who doesn't agree with Zobelle's particular brand of nationalism. Rollins' casting was announced  in March.

The series isn't expected to conflict with Arkin's role on NBC's Life, if Life is picked up for fall. (See our Fall TV Scorecard for more details.)

Are you ready to see some bikers and neo-Nazis fight it out?

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