It is a smooth and sophisticated effort, the product of polling and focus groups, with full-page newspaper advertisements, skillful television commercials and celebrity advocates for abortion rights.

Before Mr. Lynch, a marquee celebrity advocate was the illusionist Doug Henning, who died in 2000.

Martin is regarded as one of the most visible celebrity advocates for fair trade, supporting Oxfam's ongoing Make Trade Fair campaign.

HE is also starting to sign up celebrity advocates who can help build his foundation's profile.

Fuhrman was approached by Save the Children in 2010 to be a celebrity advocate for their "Caps for Good" project.

Scores of protesters, including some of the celebrity advocates who have come here in a show of support for the anti-Navy movement, have been arrested for trespassing on the field.

The same year, she appeared on the CBC television program The Greatest Canadian, as David Suzuki's celebrity advocate.

Predominantly, goodwill ambassadors are celebrity advocates or known personalities, who use their fame and talent to get funding, donations, encourage volunteers to participate and raise awareness towards the organization's cause.

But Professor Thompson and others are skeptical about whether today's celebrity advocates like Martin Sheen and Janeane Garofalo are able to shift political debates.

He was the celebrity advocate in Britain's Best Sitcom for Fawlty Towers and presented an hour-long documentary about the series.