There are many stories of actors going method — staying in character at all times, forming a complete attachment with a role or project — and finding great success as a result. Heath Ledger did it playing the Joker in The Dark Knight; Jim Carrey did it playing Andy Kaufman in Man On The Moon.
This is a companion discussion topic for the original entry at https://www.cfl.ca/2024/07/27/method-man-janarion-grant-is-elusive-year-round