TV and stage actress Juliet Stevenson says it was "uplifting" speaking to members of the public donating to today's telethon.
She said helping take donations had made her aware of just how much British people care about what's going on.
She spoke to ITV News Correspondent Rageh Omaar at the event:
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Ukip leader Paul Nuttall also said he would want to get rid of Sharia courts.
Over 40,000 people picked up their packs to take part in the annual marathon in the capital.
The country's voters are concerned about security, the economy, and the 10% unemployment rate.