Dennis

Dennis the Lazy Diesel is the Fat Controller's number D40 engine. He was a very lazy diesel, essentially a male Daisy. He tried to con Thomas into doing all his work.

Appearances
Specials:
 * Season 6 - Scardey Engines (cameo)
 * Season 9 - Thomas' Day Off and Thomas and the New Engine (cameo)
 * Season 17 - Steamie Stafford (cameo)
 * The Great Discovery (cameo)
 * Tale of the Brave

Theme

 * Dennis' theme is Conker's Drunk theme from Conker's Bad Fur Day for the N64.

Counterparts

 * Izzy Gomez (TUGS/Salty's Lighthouse, both are lazy and grey)
 * Luma (Super Mario Bros.)
 * Hacker or Silver the Hedgehog (Sonic the Hedgehog, one spends most of his time sitting, the other is the same color)
 * Admiral Razorbeard's Lackey (Rayman, both are lazy)
 * Charlie Dog (Looney Tunes, both are lazy)
 * Kago (Tarzan, both are lazy)
 * Barney Gumble (The Simpsons, both are lazy)
 * Weepy William (Horrid Henry, both are lazy)
 * Molt (A Bug's Life, both are lazy)
 * Joe Jack (King of the Hill, both are lazy)
 * Beard Papa (Wreck-it Ralph, both are lazy)
 * Ooblar (Jimmy Neutron, both are lazy)
 * Alvin the Alien (The Wubbulous World of Dr. Seuss, both are lazy)
 * Chirox, Levahk Kal, Tahnok Kal, Gahlok Kal, Pahrak Kal, Nuvok Kal, Kohrak Kal, Turahkk, Stronius, Krika, Maxillos, The Shadowed One, Dume, Kapura, Takua or Jaller (Bionicle)
 * The Blue Circle (Good Luck Charlie, both are lazy)
 * Psyduck or Genesect (Pokemon; both are lazy)
 * Leland Turbo or Rod "Torque" Redline (Cars 2; all three are lazy)
 * Prisoner (Adventure Time; both are lazy)
 * Oskar Kokoshka (Hey Arnold, both are lazy)
 * Ladykiller (Flushed Away, both are lazy)
 * Greendale Rocket (Casey Jr. and Friends, both are lazy)
 * Two-Ton or Steranko (Teenage Mutant Ninja Turtles)
 * Grim Creeper (Skylanders, both are lazy and dull-colored)
 * Krizzalid (The King Of Fighters, both are lazy)
 * Bo Rai' Cho or Kabal (Mortal Kombat)
 * Grumblemon/Grottomon (Digimon)