The protagonist knowingly performs a fictional mastermind role that keeps accidentally becoming real.
Other characters take the invented mythology completely seriously, generating consistent audience-aware comedy.
No — he's knowingly performing a fictional "shadow mastermind" role for fun, which is what distinguishes the show's comedic irony from typical oblivious-protagonist power fantasies.
Generally no — the supporting cast takes his invented mythology seriously, creating consistent dramatic irony with what the audience knows is a performance.