PREVIEW: REGULAR SHOW “MUSCLE MENTOR” Posted on June 11, 2012June 10, 2012 by John Schwarz PREVIEW: REGULAR SHOW “MUSCLE MENTOR” Rigby must prove he can complete a task or risk losing his job. Error happened.
"There are also other characters that come and go (also owned by the Warner Bros. Discovery conglomerate media company)."
Huh. Is that just referring to other characters from the show itself, or is this implying that the new season is going to have cameos from other WBD IPs