Jan and Hank are an excellent idea. I adore Jan in EMH. I'll do some research. Bucky is someone I want to know more about as well. They tend to write him so hostile towards Tony, but I've not really seen any of that in their post-siege interactions.

I plan to do a special post about Bucky and Sam after Captain America: Winter Soldier comes out. If you want to read Bucky's origin story start with my first captain america recommendation in Part Two. That deals with the introduction of Bucky in the modern age and the retcon of Bucky and Steve's origin story.