London: Charlie Sheen accompanied police officers and several hundred people to raise money for bipolar disorder sufferers.
Bipolar disorder involves periods of elevated or irritable mood (mania), alternating with periods of depression.
The actor marched through Toronto in Canada Friday, Dailystar.co.uk reports.
He asked followers to donate money before joining the charity fundraiser, telling the crowd: "I was called bipolar. You guys, I`m bi-winning right? I`m not sure what the f**k bipolar even means. It`s a psychiatric opinion, which means that to me it`s rooted in judgment."
Sheen pledged the profits to a Canadian bipolar group whose executive director said he was surprised and honoured by the actor`s gesture.
Kaj Korvela of the Bipolar Affective Disorders told the Los Angeles Times: "Sheen spontaneously decided to do a fundraising walk and deemed us the recipient of the funds. We didn`t know it was coming."
"It`s totally about awareness, and if Charlie Sheen can bring it to the public`s attention then that`s a good thing. We`re not commenting on Charlie Sheen or whatever he`s dealing with, but he`s decided to raise money for our group and we`re OK with that."