[Regular Show] How old are Mordecai and Rigby by Season 7? I mean, just going by the fact that there have been a few Halloweens by then, are they about 30 by the end? I know they're 23 in the first episode. 29 juil. 2019 ยท How old is Mordecai from the Regular Show? Mordecai is the overall main protagonist of.