Check out the new promo for Heroes season four

First we got news of Robert Knepper's promotion to regular cast member on NBC's Heroes season four; now we get the first promo, which you can view after the jump.

The fourth season kicks off, confusingly, with "Volume Five: Redemption."

The three-and-a-half-minute clip, with footage first seen at last weekend's Comic-Con, features Knepper as a My Chemical Romance-looking carnival impresario and also offers glimpses of new cast members Madeline Zima (Weeds), Ray Park (G.I. Joe) and Dawn Olivieri (Knight Rider).

Heroes returns Sept. 21 and will air Mondays at 8 p.m. ET/PT on NBC.

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