Ex-Blue Peter presenter Peter Duncan has been named the leader of the UK's 500,000 scouts.
He started on the show in 1980 and became famous for doing dangerous stunts, like cleaning the face of Big Ben and running the marathon.
Cub scout Sally, nine, from Kingston in Surrey said: "I've met the new Chief Scout and he's cool.
"He really knows how to talk to children. It's great we have a real action man as our new Chief Scout."