Hmm...I've not heard of this show. Goes to show you why it was canceled. Not to say that I am the only determining factor as to whether a show is a hit or not.
Yeah, it should, but we don't live in Shouldland! Ah, Shouldland, where clean-cut kids cruise Shouldland Boulevard, and the Shouldland High football team gets their optimistic asses kicked by their crosstown rival, Reality Check Tech.
I think Downey's a pretty good choice. I could see some others that I think might fill the role - Viggo Mortenson comes to mind, as does Christian Bale. For Mandarin - do we want to go Jack Kirby Mandarin? Jackie Chan. Later?