So far, the known Namesakes and their "worlds" are: Alice (Alice in Wonderland), Jack (Jack and the Beanstalk), Wendy (Peter Pan), and Dorothy (The Wizard of Oz). What do all these characters do in their respective stories? They're people from the normal world who go to far-away lands and change things while they're there. Hence the premise of the comic.
The secret society devoted to protecting Namesakes is named Calliope. In Classical Mythology, Calliope is the muse of epic poetry.
This probably isn't true. Fred has stated he's never met the Queen of Hearts in a Q&A page. He states she's mean and thus has no desire to and she hasn't been in seen in years. Cards work for the Scissor men.
Confirmed that he's super young: A Q&A page w/him has him state he's three years old.