Mrs. Conductor (Sra. Madre del Revisor or Madre del Revisor in Spain) is a troodon. She is the mother of Mr. Conductor and great-aunt of Gilbert, and Sydney. Unlike most troodons she's energetic, loud, playful, and fun-loving. She also use to run the Dinosaur Train. She visits on special occasions. She is best friends with Don who likes her games and fun personality. Her son gets fed with her energy, embarrassment, sneaking up on him and saying his line, such as "ALL ABOARD!" And sometimes when her son is having a day-off, she does his job for him.