The ball, at Goodwood House on the Sussex Downs, was organised by yachting company Sunseeker Sales Group and raised £23,000 for the charity.
Powell, who is currently starring in the BBC medical drama Holby City and is president of Sparks, said: "Not enough people realise that most of this cutting-edge research in the UK relies on charity funding rather than the public purse, and that's what makes the support of a company such as Sunseeker so important to Sparks' mission to give more children the best start of all in life - a healthy one."
Gary Lineker, the television presenter and former England footballer, was among the celebrities who competed in the annual Lord's Taverners Brommers' Trophy Golf Day at the start of the month. Also among those taking part were actor Dennis Waterman, former England cricketer Chris Cowdrey and TV presenter Sue Thearle. The tournament, at Sunningdale Golf Club in Berkshire, raised £11,000.
The Police, the popular 80s pop band who recently reformed, have donated tickets to a special auction to raise money for WaterAid. The band have donated tickets for all the concerts on the north American leg of their upcoming tour. The highest bidders in the auction will also receive a VIP package that will include top of the range gift bags. The proceeds will help the charity's work to provide safe water, sanitation and hygiene education in developing countries.
Lisa Faulkner, the actor, is just one of 15,000 people expected to take part in the 10th Playtex MoonWalk on Saturday night to raise money for breast cancer charity Walk the Walk. Participants will don decorated bras and walk 26 miles around London to raise funds for and awareness of breast cancer research and care. TV presenters Kirstie Allsopp, Kate Garraway and Charlie Dimmock will also take part.
Faulkner, whose mother died of cancer when the actor was 14, says: "The main reason I was so keen to be involved is to help raise awareness. When my mum passed away nobody talked about cancer: it was very much a taboo subject."
Darts champ Phil 'the Power' Taylor supports the British Heart Foundation.
Taylor, the 13-time darts world champion, decided to back the British Heart Foundation's 30 A Day exercise campaign after realising that his poor health was threatening his career.
Taylor made a number of media appearances to promote the campaign, which was launched last month to encourage people to take 30 minutes of exercise every day.
"I lost this year's PDC World Darts Championship in a sudden-death decider because I was physically unable to cope right at the end," he says. "I weighed 18 stone and was basically unfit. Things had to change. If they didn't, I might never win another title."
Taylor is now writing a blog for the charity's website, documenting his efforts to get fit by using the charity's recommendations for daily exercise.
He writes: "I used to go through phases of keeping fit and losing weight, but I'd get bored and go back to how I was. This time, I've done it right. Exercise and diet are now part of my life."