SpongeBob SquarePants (1999)

S17E12 It's About Mime

A silent mime starts trailing SpongeBob everywhere, copying his every move with exaggerated precision. SpongeBob finds it increasingly irritating as the mimicry follows him through work, home, and even jellyfishing. No matter what he tries, the mime refuses to stop, turning SpongeBob’s cheerful day into a frustrating battle of wits.