In 2000 he co-created, wrote and performed in "Alistair McGowan's Big Impression", later to be renamed "The Big Impression", which was BBC One's first sketch show for many years and their first impressions show since Mike Yarwood's. The show, produced by Charlie Hanson, proved a massive hit: in addition to writing the series Dutton was one of the supporting performers along with Ronni Ancona, Alan Francis, Roger Blake and Duncan Wisbey, and performed impressions of, among others, Dustin Hoffman, John Le Mesurier and James Stewart. He wrote and performed in four series of the show and two Christmas Specials, and won a British Comedy Award in 2001, and a BAFTA. A spin-off series, "Ronni Ancona & Co" was commissioned in 2007, which Dutton wrote with Ancona, Alan Francis and Alex Lowe.