Hollywood actress Rosario Dawson has made a public plea for help finding her friend who has been missing for a week.

The Sin City star has urged her fans to call a missing person's hotline if they have any information about the whereabouts of her pal Erick Paul Perez, who has not been seen since last Wednesday (16Apr14).

She posted a picture of Perez with the hotline number on all her social media accounts, such as Twitter.com, and added, "A dear friend is missing. Please do call if you have any information..."

No further details about Perez's disappearance were available as Wenn went to press.