Who is he, succinctly?

Sycophantic leader

Why is he in The Troupe?

To make sure he’s doing better than his brother Nigel (and to look after him)

Who is he like from TV?

The Captain, from Ghosts, or Frasier (from Frasier not Cheers). Thinks that he is in charge, but is most certainly not. Lovably pompous.

Who would he be in Cheers?

Diane.

Who could play him?

TBC