Moving on. Here are some questions I need answers to. If you've got 'em, please let me have 'em.

If, while shooting an episode of an action-oriented TV series, the star needs help climbing down from a big-ass prop after they've filmed a scene, which person on the set would be most likely to assist him?

Who would be most likely to deliver a new script to the actors, especially for a show that's concerned about spoiler-control? Would they hire a messenger for that, or would a PA or somebody else on the staff deliver it personally?

How likely is a creator/producer (ala Whedon) to hang around the set for episodes s/he isn't directing? How likely is it for an episode's writer/s to hang around during filming?

For that matter, how likely is it for an actor's personal assistant to hang around the studio?

Thanks in advance for anything anybody can tell me about any of the above.