Hi there! I'm Amy - I'm fairly new to the game too (like...two days? three?) and I've got two so far.
First up is the tenth Doctor (temporalflux) who will be just as excited if not more excited than Rose because he found Rose. He's post-Midnight/pre-Turn Left so he's the ten that still loves life and isn't resigned to dying. I get the feeling he'll get on well with both of your boys, although there might be a little bit of 'who is the better alien' where Clark is concerned. Neither of you, will probably be the answer, but he might be a little smug for a minute.
Second is Effie Trinket here from The Hunger Games. She's in bad shape at the moment as she's post-Catching Fire but pre-end of Mockingjay. She's about to land in the Village straight from her cell in the Capitol. I'm sure when she's calmed down and isn't in so much pain she'll find both Steve and Clark ridiculous (don't feel bad that's how she feels about most people), but they're welcome to ask for clothing assistance. She's got a good heart, really, she just misses her kids and being able to hear.