[s4e17] You Dont Know Jack -

The disciplined sensei who suspends Jerry; "evil" version in the vision. Mateo Arias

Olivia Holt returned as a guest star for this episode (and several others in Season 4) after having left the main cast to pursue other projects. [S4E17] You Dont Know Jack

You can watch this episode and the rest of the series on the Kickin' It page on Disney+. You Don't Know Jack (2015) - (S4E17) - Cast & Crew - TMDB The disciplined sensei who suspends Jerry; "evil" version