The second season of Sons of Anarchy will feature a pair of big names: Henry Rollins and Adam Arkin.

The photos below give fans their first look at these stars, as Rollins takes on the role of AJ Weston and Arkin portrays Ethan Zobelle; both are neo-nazis set to terrorize SAMCRO. Look out, Clay Morrow!

Here's more on these new characters:

• FX is hyping Rollins’ Weston as a new antagonist that promises to be a “deadly threat” to the biker club: “Henry will bring his intensity and muscularity to this complex part," said Nick Grad, the network's VP of original programming.
• Arkin's Zobelle, meanwhile, arrives in Charming and opens up a cigar shop. He clashes with Clay.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.