|"While we're stuck waiting, why don't you tell us who's really under there?"
The Hatching (flashback)
Pause and Effect (flashback)
The Master of Sound watched as Wu told Maya and Ray that he had a plan to defeat the Hands of Time. When Wu and Garmadon defeated the Time Twins using the Time Blades forged by Maya and Ray, the Master of Sound restrained Krux.
- 40. "Spellbound" (flashback)
- His hat has a design resembling a tuning fork.
- The design of his undershirt resembles Wu's 2012 Minifigure design, which never appeared in the show.
- When young Wu is referring to the Elemental Masters in "The Hatching", he seems to refer to the Master of Sound as "Smoke".