Re: Which characters do you think will appear in "Agents of S.H.I.E.L.D.?"
I would be shocked if Jessica Jones didn't make an appearance in the show since Marvel/ABC are so eager to launch a series with her in the lead. Luke Cage would be another logical choice, not merely because he's married to Jones in the comics but because of his own powers and potential as a spin-off.
They might also choose to use Daisy Johnson/Quake, who is of course a SHIELD agent and protegee of Nick Fury. Johnson's powers would be very easy to portray, while her origin and eventual recruitment to SHIELD would be an interesting story to play out. Perhaps her biological father Calvin Zabo/Mister Hyde might also make an appearance.