Supah Ninjas - Season 1 Episode 23 Limelight

Limedark (Danny Masterson), a former college actor, kidnaps his former cast mates, who have become famous, and has horrible plans for them. Meanwhile, Owen has trouble hiding his ninja skills and almost exposes his friends and himself twice, once while trying to defend a boy from a shifty-looking senior student who was actually selling cupcakes to raise money for children's hospitals and when Limelight captures his final target. Mike and Amanda scold him afterward but Hologramps takes pity on Owen because he was trying to do the right thing, he also knows how he feels about not receiving enough attention and not getting credit for helping to save Empire City, but he tells him that a ninja's strength comes from within, not the opinion of others.