[quote=Kaga]
Eh, I guess Mickey and Martha just weren't as popular. Though you're right that there isn't much of an excuse for Jack. Although, I did hear an amusing theory that the reason why Jack wasn't around at all during Matt Smith's run is because Moffat can't kill him. Hopefully he'll show up during Capaldi's run. I really have no basis for this theory; it's just a hope.
[/quote]

I really wanted to see more Mickey and Martha because of this return of UNIT in new form. We saw the bulk of the organization be wiped out between Nine and Ten (Slyveen + ATMOS), but when it comes to the modern UNIT there's the daughter of some general from Classic Who, but no Jack, Martha, or Mickey. I agree some characters should be given time to breath and perhaps brought back later for giggles from at that point long-time Whovians, but why not feature them as the new foundation for UNIT's leadership. It's not like the group is constantly in the show anyway. Instead we get Amy & Rory, who though I loved them, were being forced onto us pretty hard then kept around a long while -- not a complaint here, just saying. 

Mickey and Martha were characters written to never really be too loved. They were intentionally overshadowed by Rose, Mickey pretty clearly, and Martha noting this in her dialogue. That's exactly why I think they should appear occasionally. These are people who proved themselves as two of the most badass characters in the Whoverse, both trekking the Earth and fending off the occupation without the help of the Doctor (Rickey + Cybermen & the Year that Wasn't). The fact they got married pretty much means we have the human-equivalent of a Doctor Couple just jaunting about. Come on Moffat, it's all there for you.

I'm not really that mad. I love Who because it doesn't follow American ideals and is perfectly willing to act over your head for a time. They do as they please, but we trust them because we know even if a couple episodes made us cringe, it'll all be worth it later. I do have my wishes though... Jack... :dreamy