There is no special line for anyone (except CLEAR) at MCO. 1K's hang out with the mouse ears, Tigger tails and all the other characters you will find at MCO on any day of the week.

My experience, and I have had a ton of them in the last few months, all on a TUE-THR though, has been that the line takes from 15-25 minutes on average. The key is to stay to the inside since the inside lanes get to the metal detectors fastest. The second tip is to try to avoid the lines that have the most strollers and infants in them as getting stuck behind this type of traveling family will doom you to a torturous wait. Ahhh, to not have to go back through that line for a while....