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Mavis is a diesel engine, who works in the quarry in TV show, Thomas the Tank Engine & Friends.


When she first came to Sodor, she used to be feisty, arrogant, tomboyish, and very stubborn, and used to be full of her own ideas, and would shunt Toby's trucks where ever she would like, much to Toby's dismay. He tried to reason with her, but she was still being stubborn, until she got in trouble by getting stuck at the Ffarquhar crossing. Toby thought she could take care of herself, until his driver told him she was supposed to stay at the quarry, so Toby decided it would be best to help Mavis after all. After Toby helped her, she was left very embarassed and angry. After being punished by her manager, Mavis was still stubborn and ignored advice. She planned to use the teeniest bit of Toby's line to save herself from this bother and planned to use the trucks to bump her on Toby's line. But it backfired when the trucks bumped Toby instead and he almost fell off a broken bridge into an abyss. Mavis, now horrified, helped Toby to safety. Mavis confessed, but Sir Topham Hatt and her manager were proud of her for being honest and for saving Toby and now that she learned her lesson, her reward was to come down branchline and help out. Now Mavis is a happy, honest, reliable, hard-working and friendly diesel who shows respect for the steam engines, which she loves, but she still is a tomboy. She occasionaly makes mistakes, but knows how she can fix them, and is there when any engine needs her the most.


  • Mavis is based on a BR Class 04 0-6-0 fitted with additional cowcatchers and sideplates so that she can run near public roads.
  • Mavis has appeared in every season since her season 3 debut.

Mavis in the CGI series

External links


           T&FLogo.png Heroes

Thomas the Tank Engine | Edward the Blue Engine | Henry the Green Engine | Gordon the Big Engine | James the Red Engine | Percy the Small Engine | Toby the Tram Engine | Duck the Great Western Engine | Donald and Douglas the Scottish Twin Engines | Oliver the Great Western Engine | Emily the Stirling Engine | Diesel the Diesel Engine | Bill and Ben the Tank Engine Twins | Daisy the Diesel Railcar | BoCo the Diesel Engine | Bear | Mavis | Stepney the Bluebell Engine | Lady | Salty the Dockside Diesel | Harvey the Crane Engine | Arthur | Murdoch | Spencer | Fergus | Molly the Yellow Engine | Dennis the Lazy Diesel | Whiff | Billy | Stanley the Silver Engine | Hiro | Bash and Dash the Logging Loco Twins | Ferdinand the Logging Loco | Belle | Flynn the Fire Engine | Den | Dart | Paxton | Norman | Sidney the Forgetful Diesel | Stephen the "Rocket" | Caitlin | Connor | Gator | Marion | Timothy | Glynn the Coffee Pot Engine | Ryan | Skiff | Ashima | Frieda | Gina | Raul the Brazilian Engine | Yong Bao | Carlos | Axel | Shane the Australian Engine | Etienne | Rajiv the Indian Engine | Merlin | Lexi | Theo | Nia the Kenyan Engine | Rebecca | Skarloey | Rheneas | Sir Handel | Peter Sam | Rusty the Little Diesel | Duncan the Narrow Gauge Engine | Duke the Lost Engine | Freddie | Victor | Luke | Millie the French Engine | Annie and Clarabel | Henrietta | Toad the Brake Van | Terence the Tractor | Bertie the Bus | Trevor the Traction Engine | Harold the Helicopter | Bulgy | George the Steamroller | Butch the Breakdown Vehicle | Byron the Bulldozer | Thumper | Jack | Alfie | Bulstrode | Cranky the Crane | Kevin | Captain | Carly | Big Mickey | Sir Topham Hatt | Lady Hatt | Dowager Hatt | Sir Robert Norramby |