There is an In and Out north on Harbor Blvd in Fullerton about three miles away. There is also one on Orange and Brookhurst avenues in Anaheim. Maybe 2-3 miles away. None within walking distance.I'll be looking for an In and out and a Roscoe's. They are mythical places to me, only spoken of by friends of friends or seen on TV.
Believe it or not, they are building a Roscoe's on Harbor less than a block from the Convention Center. Should be open by then...in fact, it may be open now. I haven't been that way in a while, but I will be near there this weekend for Wondercon.