Hayden Panettiere: Working Weekends

Hard at work on her hit show, Hayden Panettiere was out filming scenes for "Heroes" in downtown Los Angeles on Sunday (November 9).

After finishing up her work, the 19-year-old animal loving actress stopped to show some love to a passerby's pet pooch on the way back to her trailer.

Meanwhile, you can catch Hayden and her co-stars in an all-new episode of "Heroes" tomorrow night at 9/8C on NBC.

Titled "Villains," this week's show is "a prelude to a coming confrontation, during which Hiro (Masi Oka) traces respected businessman, husband and father Arthur Petrelli (guest star Robert Forster) back to the days before he 'died' - to discover what drove him to create rival company Pinehearst and strike at Angela (Cristine Rose). His journey reveals a critical moment when Sylar (Zachary Quinto), horrified and guilt-ridden, might have stopped his murderous pursuit of abilities - that is, if H.R.G. (Jack Coleman) and Elle (guest star Kristen Bell) had been swayed from their monstrous assignment. Finally, under the wing of Company man Thompson (guest star Eric Roberts), agent-in-training Meredith (guest star Jessalyn Gelsig) watches her new life go up in smoke, following the arrival of her hot-headed brother."

Gossip Girls

Enjoy the pictures of Hayden Panettiere on the set of "Heroes" (November 9).