Thread:Hey1234/@comment-5091911-20180804142746/@comment-1635429-20180804195041

Okay, judging by the official subtitles from the DisneyNow App, it's spelled "Frederickson". Since these are taken from two seperate episodes, I feel more inclined to follow this spelling.

If this isn't enough, perhaps someone can get in contact with one of the show staff on social media.