<P> Carrie visits Charles to apologise for attending the wedding . Charles confesses that, while standing at the altar, he realised that for the first time in his life he totally and utterly loved one person, "and it wasn't the person standing next to me in the veil ." Charles makes a proposal of lifelong commitment without marriage to Carrie, who accepts . </P> <P> Henrietta marries an officer in the Grenadier Guards; David marries his girlfriend Serena; Scarlett marries Chester; Tom marries his distant cousin Deirdre (whom he met, for the second time in 25 years, at Charles's wedding); Matthew finds a new partner; Fiona marries Prince Charles; and Charles and Carrie have a young son . </P> <Ul> <Li> Hugh Grant as Charles </Li> <Li> Andie MacDowell as Carrie </Li> <Li> James Fleet as Tom </Li> <Li> Simon Callow as Gareth </Li> <Li> John Hannah as Matthew </Li> <Li> Kristin Scott Thomas as Fiona </Li> <Li> David Bower as David </Li> <Li> Charlotte Coleman as Scarlett </Li> <Li> Timothy Walker as Angus </Li> <Li> Sara Crowe as Laura </Li> <Li> Rowan Atkinson as Father Gerald </Li> <Li> David Haig as Bernard </Li> <Li> Sophie Thompson as Lydia </Li> <Li> Corin Redgrave as Sir Hamish Banks </Li> <Li> Anna Chancellor as Henrietta </Li> </Ul> <Li> Hugh Grant as Charles </Li>

Who plays lydia in four weddings and a funeral