Well about 4-9 months ago my Steam account was hacked and my email was too. I lost both of them including a Minecraft account. It was hopeless trying to get my steam account back because it was all automated messages. So I made a new character recently, played it a bit. Then I decided to try to log back in. I successfully got the Spiral Knights Account back because the password was the same, but I didn't get my email or steam back. So I log in and my amazing character is gone.. My question is, is there any possible way to recover a deleted character? Even if it wasn't your fault it was deleted?
Try to send a support email here: http://wiki.spiralknights.com/Support_Portal
Tell the whole story.
Hmm... Reminds me of the time when my alt knight, Acerrz lagged and I logged off, only to see a blank character named: Alucard- something... forgot.
Probably a lag-defense mechanism.
Hope I helped.