Not that I recall, of course I don't remember much about KQ7.
On the other hand...
I've looked into this too. I hacked into the resource.aud file of KQ7, and discovered a single line that had to be Graham's. He says "Ladies! I was beginning to worry! You're fifteen minutes late for lunch!" Apparently, he was meant to be in the game's outro. Sierra Planet used to have the clip, but it's not there at the moment. I don't know much more than that.
Akril