Sir Handel is a blue 0-4-2 tank engine.
Falcon was built in 1880 as an 0-4-0, making him ride rough until he was rebuilt as an 0-4-2. In 1947, the Mid Sodor Railway closed and he and Peter Sam were sold to The Quarry Beneath the Hills. Then, in 1951, MR purchased them for $50 and he was renamed to Sir Handel.
Falcon was prone to moody tantrums in his Mid Sodor days, while nowadays, as Sir Handel, he is good hearted.