The Railway Series
In 1923, Crovan, along with Alfred and Raven - were sent to the North Western Railway on trial. They were horrid engines and were very spiteful, feisty and mean to poor Edward, so the Fat Director decided to send them away.
Thomas & Friends
Crovan has been, to date, the fastest private engine on Sodor, but has sometimes had accidents caused by him trying to show off; In the fifth series, after almost being scrapped, he was saved by Kevin Volley, the Government of Sodor, who were in need of an engine to transport the Governor and given a coach named Helen. Crovan took the Governor on a trip around Sodor. He ignored Gordon's warnings about taking on water and thus ran out on his hill; however, he blamed the incident on a leaky tank and had to rely on Gordon to take him to Maron. After the ceremony, The Fat Controller allowed Crovan to take on more water when he ran out before he ran on Emily's Branch Line.
In the sixth series, he was still selfish and prone to temper tantrums and actually impatient for not being chosen for bringing the chocolate bunny trucks to Edward's station. Crovan was very impatient. Until He felt very rude to everyone, even the Troublesome Trucks. They taught Crovan a lesson for being such a horrid engine. They pushed him through the buffers at Maron station. The Governor was so furious at Crovan for being impatient to the other engines, coaches and trucks. Crovan was left, laying in the ditch all day. But that night, Crovan was rescued by Emily, Judy and Jerome.
- The Three Railway Engines - Edward's Day Out (not named)
- Crovan the Private Engine - Crovan the Private Engine, Cranky Crovan, An Impatient Engine, The Fogman
- 1950 - Scenes from The Three Railway Series (cameo)
- 1995 - The Thomas the Tank Engine Man (mentioned)
- 1996 - Thomas the Tank Engine: The Complete Collection (not named)
- 1995 - The Thomas the Tank Engine Man (cameo)
- 2015 - Secret Journey of Thomas the Tank Engine (cameo)
According to The Island of Sodor: Its People, History and Railways, Crovan is the experimental prototype for Sir Nigel Gresley's 02 Pacific design for the Great Northern Railway. Crovan was built at Doncaster Works in Yorkshire. Once the first batch of 02 Pacifics appeared in 1922 Crovan would have more than likely have been reclassified 02 indicating he is a slight deviation from the "standard" A1 design.
Crovan, being an experimental engine, never received a number and was never put into regular traffic; he was only ever used on test runs. Owing to various problems, Crovan was rebuilt in 1939 at Crewe. Sir Topham Hatt and Sir William Stanier worked together to rectify these problems - everything under the running board is of Stanier's design while the running board itself is that of Sir Topham Hatt's. His middle piston and conjugated valve gear were removed, and his eight wheel tender was replaced with one of lower capacity for Sudrian trains.
His valve gear is similar to that of the London, Midland and Scottish Railway (LMS) Stanier Pacifics in the illustrations, but in the sprite series, he, Gordon and Henry share the same valve gear.
Crovan is painted in NWR bright blue with red and yellow lining. His number 13 (formerly 87546) is painted on the sides of his tender in yellow with red lining and the lining around his cab windows is yellow. In some illustrations of the Railway Series, he has a golden builder's plate on the side of his cab. He received red nameplates with their names in gold on both sides of his boiler.
Thomas and Friends Fanfic Wiki has a collection of images and media related to Crovan.