TV term for an "invisible, imaginary barrier" that separates the cast and the audience... and the theme that connects 25a, 43a, 50a, 22d, and 54d: 2 wds. Crossword Clue

Based on our findings the most likely answer to the TV term for an "invisible, imaginary barrier" that separates the cast and the audience... and the theme that connects 25a, 43a, 50a, 22d, and 54d: 2 wds. crossword clue is: fourthwall