Hoot and Toot tend to bicker and argue at times. They both dislike rules which often gets them in trouble and making them the unusual chuggers working on the Chuggington Railway. Toot is crafty and mischievous in many episodes, whilst Hoot is more wise and careful.
Hoot and Toot are based on a hybrid between the BR Class 168 DMU and the BR Class 70 Powerhaul diesel, because they were designed for freight like, the BR Class 70, and their cabs' resemblances to the Class 168's.
LiveryHoot is painted blue and white with a teal door, whilst Toot is teal and white with a blue door.
- Hoot is male while Toot is female.
- Hoot is stronger than Toot, as seen in Toot's Tall Tale.
- Hoot and Toot are usually together; however, in some episodes, they are seen apart.
- Hoot is red-green colour blind, meaning he is incapable of telling the difference between the two colors.
- Hoot has 1 horn, while Toot has 2.
- They live in the Trainee Roundhouse with Wilson, Brewster, and Koko.
- In German Hoot is called "Leon" and Toot is called "Lea".
- In Polish Hoot is called "Buczek" and Toot is called "Nutka".
- In German, their catchphrase is "Lea und Leon sind auf und davon!" - "Lea and Leon are up and away!" In Polish, their catchphrase is "Nutka i Buczek - pierwsi do sztuczek!" - "Nutka and Buczek - first for tricks!"
- They sometimes describe things as "hooting-tooting."
- Toot always seeks attention and is highly crafty, much to Hoot's annoyance.
- They are good friends with Piper.
- Their situation was a conjoint twins.
Season 2 - Babysitter Brewster, Hoot vs Toot, Wilson and the Dinosaur, Heave Ho Harrison, Next Stop - Space, Stunt Brewster, Rolling Reporter Wilson, Fault Finder Emery, A Pat On The Paintwork, Toot's Tall Tale
Season 3 - Gold Wheels, Special Helper Wilson, Magnetic Wilson, Zephie's Star Club, Movie Maker Brewster, Toot's New Friend, Skylar's Squad
Season 4 - Chief Wilson, Brewster Leads The Way, Park Patroller Wilson, High Rise Rescue (Hoot only), Winter Whiteout, Team Trainee, Record Breaker Koko, Iron Chuggers, Round Up Wilson
|Trainees • Chuggers|
|Wilson • Koko • Brewster • Dunbar • Old Puffer Pete • Calley • Hodge • Zephie • Harrison • Chatsworth • Emery • Irving • Mtambo • Olwin • Frostini • Action Chugger • Speedy McAllister • Hoot and Toot • Skylar • Piper • Decka • Jackman • Zack • Tyne • Fletch • Hanzo • Asher • Payce • Cormac • Skipper Stu • Harry and Hamish • Russ • Daley • Rosa • Tai • Minor Locomotives|