Mystery! Action! Songs! Join Detectives Mary-Kate and Ashley as they undertake daring adventures. Pack your gear and help the Trenchcoat Twins investigate the danger that lurks. Along with their sidekick dog, Clue, Mary-Kate and Ashley promise to "solve any crime by dinner time." In this episode, the Olsen and Olsen Mystery Agency has been hired to find the ghost in a haunted mansion in Transylvania!
Michael Kruzan
Director, Writer
Charlotte Dreiman
Writer
Ashley Olsen
Ashley Olsen
Mary-Kate Olsen
Mary-Kate Olsen
Elizabeth Olsen
Elizabeth Olsen
Elizabeth Lambert
Natasha Thorn
Mary Tuck
Miss Busybody
Casper Brindle
Ghost
Scooby-Doo! Mecha Mutt Menace84%
Scooby-Doo! Stage Fright75%
Scooby-Doo! and KISS: Rock and Roll Mystery79%
Timmy Failure: Mistakes Were Made62%
Trick or Treat Scooby-Doo!69%
A Scooby-Doo! Christmas82%
Scooby-Doo! in Where's My Mummy?74%
See Spot Run60%
Big Top Scooby-Doo!76%
Scooby-Doo! Adventures: The Mystery Map82%
The Loud House Movie72%
Scooby-Doo! and the Witch's Ghost74%
Monster Family 266%
Playing with Fire65%
The Sheep Detectives78%
Rugrats Go Wild63%
Pets United59%
Scoob!69%
Oddball68%
Hoodwinked!63%
