Bill Rancic, Pamela Anderson and more stars run the New York City Marathon

More than 50,000 runners took on the New York City Marathon on Sunday, and a few famous faces were among those hitting the pavement for the famed 26-mile race.

Pamela Anderson ran the marathon with her brother, Gerry, to raise money for Sean Penn's J/P Haitian Relief Organization.

She also shared a photo of her finisher's medal and another post-race shot of her in bed with a few ice packs:

Penn didn't run the race, but he sponsored five Haitian runners through his charity, bringing them to New York for the marathon:

Reality TV personality Bill Rancic had his wife, E! News' Giuliana Rancic, on hand to support him as he ran the race, starting last and raising funds for each person he passed to benefit her breast cancer charity, Fab-U-Wish.

Model Christy Turlington ran the marathon in support of her organization Every Mother Counts, which works to end preventable deaths caused by pregnancy and childbirth around the world.

"Insidious" star Patrick Wilson also laced up his running shoes Sunday, raising money for the Michael J. Fox Foundation:

So, who was the fastest celebrity runner? That would be Wilson, who finished in 3:32:35. Turlington finished with a time of 4:35:32, Rancic at 4:57:23 and Anderson crossed the finish line at 5:41:03.