Myrtle is a top-secret army coding device.
The New Scooby-Doo Mysteries
It was so secret nobody was sure what it looked like, except that it was disguised as a household appliance and would respond to code phrases. The Scooby-Doo Detective Agency was given the job of finding it in Pingree's Department Store by trying out the phrases on every item they could. It turned out to look like a common fan. (A Code in the Nose)
- "So how much is that, anyway?" was given to Daphne Blake.
- "I love you more than I ever loved anyone." was given to Shaggy Rogers.
- "Go ahead, call the police. I dare you." was given to Scrappy-Doo.
- "Patty cake, patty cake, baker's man." was given to Scooby-Doo.
- It was voiced by Frank Welker.