Mavis - Tomy Thomas and Friends 2005

Mavis is a black female Diesel engine who worked for the Ffarquhar Quarry Company at Anopha Quarry prior to the sixth season, then at Centre Island Quarry until the thirteenth, and now at the Sodor Slate Quarry.
Mavis was arrogant until being brought down to earth after her embarrassing incident at the Ffarquhar crossing. Despite this, Mavis is a reliable, honest, hard-working engine, and shows respect for the steam engines.