British actor Paul Grant has vowed to get help for drug and alcohol addiction.

The dwarf actor, who has appeared in the Star Wars and Harry Potter movie franchises and David Bowie's Labyrinth, was caught snorting cocaine in pictures published by Britain's Sunday Mirror newspaper.

He confessed, "I need help" and revealed his problems began after the breakdown of his marriage, which left him homeless, and he stopped receiving work offers.

Grant, who is living in a friend's apartment, says, "My family has disowned me and work has dried up... I've been on cocaine and it has just got worse. I'm drinking and smoking what I can get.

"I'm all right but I do need help. I've got kids and a granddaughter... I'm going to give it a crack (go). I do want to get back to where I was... I've not been to see anyone, but if someone did offer me help or brought me help I would take it."