Eva Longoria, Jessica Alba and Kal Penn: Stars Show Support at Democratic National Convention (GALLERY)

Celebrities are flocking to Charlotte, N.C., in a bid of support for this week’s Democratic National Convention.

But President Barack Obama’s typical big-name backers — such as George Clooney, Oprah Winfrey and Matt Damon — are notably absent this year. But many stars are still rallying behind their party, pushing for Obama to win four more years in the White House.

Of course, Eva Longoria, a co-chair of the president’s reeelction campaign, is among the celebrities making the rounds. As is Kal Penn, the “Harold and Kumar Go to White Castle” actor who used to work in the White House Office of Public Engagement. He addressed the crowd in a comedic speech on Tuesday.

So instead of the other usual suspects, who else in Hollywood is showing their political persuasions?

For his live-streaming coverage of the event for BarackObama.com, Penn was joined by a few big-screen stars, such as Elizabeth Banks and Olivia Wilde.

Some were tapped for appearances — Glee’s Amber Riley performed Tuesday and the Foo Fighters, James Taylor, Marc Anthony and others took the stage on Thursday. Meanwhile, others were just in attendance to soak up the pro-Obama atmosphere, like Rosario Dawson, Zach Braff and John Leguizamo. And Jessica Alba and husband Cash Warren are in town to host a closing party.

But are there still some surprise appearances on the horizon as the convention nears its close? CNN reports that Natalie Portman, Scarlett Johansson and Kerry Washington are expected to speak Thursday night.

Check out all the star-studded crowds at the DNC in our gallery.

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