Greendale Rocket is a 4-4-0 tank engine, who is driven by Ajay Bains. She is the engine, who often pulls passenger carriages and sometimes a mail truck for Pat, since her train consists herself, her coach, and red mail car.
- Train Bult: Steam Engine
- Appearance: Postman Pat (1981-Present)
- Gender: Female
- Agliment: Good
- Allies: Casey Jr. (brother), Toots (best friend), Tillie (girlfriend), Tootle, Montana (father), Emma, Pufle, Ivor, Jebediah, Georgia, Pete, Farnsworth, Alfred, Melissa, Tom Jerry, Blue, Johnny (good friend), Doc, Huey, Silver Fish, Rasmus, Jason, Sir Reginald, Katy Caboose, Alan (steam engine), Piper, Tracy, Rusty, Humphrey, Rodrick, Minerva, Shelbert, Mary, Streamer, Calley, Bonnie, Sasha, Wartime, Sir Norramby
- Enemies: Cerberus
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