The initiative, which is designed to bring together supporters of the charity, both past and present, was launched at a special event at the House of Lords earlier this month.
The event was attended by more than 30 influential names from the worlds of business, politics, science and the arts, including former Bond girl Britt Ekland and dementia researcher Professor Steven Rose.
Whately, who has completed the Great North Run for the charity, became involved with it after starring in the television drama Dad in October 2005. His character's mother developed Alzheimer's and the drama followed the family's struggle to cope with the impact of the disease.
Martin Peters, the ex-footballer, supports St Clare Hospice in Hastingwood, Essex. Peters is St Clare's first celebrity supporter and the face of the charity's first legacy campaign, which was launched at the start of the month. He is also donating a photograph signed by him and the rest of the England team that won the 1966 World Cup. It will be auctioned at a special event in August.
Peters became involved with St Clare after his son, Grant, became its corporate fundraiser. He also lives near the hospice. The charity hopes his involvement will prompt other celebrities to get involved.
"I decided to lend my support to St Clare Hospice after a recent visit," says Peters. "I was so impressed that I felt I would like to help in some way."
A spokesman for the hospice says charities shouldn't be shy of celebrities even if there is no existing link, as there was with Peters. "It's always worth asking, even if it's a well-known celebrity - the worst thing they can do is say 'no'," the spokesman says. "It's also important to book celebrity supporters well in advance so you can be sure they will attend."
Mike Peters, lead singer of Welsh rock band The Alarm and a leukaemia survivor, will lead doctors, nurses, fans and supporters on a sponsored walk to the summit of Snowdon to perform an acoustic set. Peters will host Snowdon Rocks, which has been organised by the cancer support charity the Love Hope Strength Foundation, on 22 and 23 June. It will feature two further acoustic concerts to raise money for cancer treatment centres in north Wales.
Faithless, the dance group, is supporting Feed the Minds' Peacemakers initiative, a collection of film, music and photography designed to improve understanding between Christians, Muslims and other religious groups in the UK. Feed the Minds, an educational charity, made a video to accompany the Faithless single Weapons of Mass Destruction especially for the multimedia package, which will be used in schools and by religious community groups.
Angela Griffin, the former Holby City actress, is supporting the Foundation for the Study of Infant Deaths' Save a Baby Month in May, which aims to raise money for research into sudden infant death syndrome. Griffin says: "As a mother, I am a strong supporter of the foundation's vital work to support families who have lost a baby."
Iggy Pop, the punk rock veteran, has provided the inspiration for the Children's Society's first garden display at this year's Chelsea Flower Show, which will take place in May. The garden has been named after his 1977 album Lust For Life. He says: "The album is full of optimism, just as young people should be."