User blog comment:Chase McFly/Reboot Cast/@comment-25120277-20180226203725/@comment-25120277-20180226205125

I'm not sure if they're really THAT busy... I hadn't heard about them being in any new shows...

Movies are different, however, since they can take a break from filming to attend to this show...

But if they're on another TV show, then they're basically commited (if they're a main role, that is.. Not if they're a recurring or guest character..)