Nigel is a mixed-traffic engine who has been living on the Island of Sodor since the end of the Second World War. When we meet him, Eagle at first mistook him for a ghost. Nigel now works on Norramby branch line, and has found Zack the J83 a great North Eastern friend. Nigel is named after his designer, Herbert Nigel Gresley, and is based on the LNER Gresley V2, which No. 4471 - Green Arrow - is a member of. He is painted NWR green with red-and-yellow lining, the number "18" on his cab side and the letters "NWR" on his tender sides.