Who is taller between the Traveler and the main Q? Other than the James Worthy Klingon and certain Angosians, is the above answer the tallest character to appear in the TNG episodes?
John de Lancie is 6'4" according to IMDB, same as Frakes. There's no biographical data for Eric Menyuk, so use Riker as the yardstick. James Cromwell at 6'7", but you've already excluded him. Carel Struycken, 7 feet. Tiny Ron, at 7 feet, may be the tallest on DS9.
I forgot about Mr. Homn. And I'm pretty sure the Traveler is taller than Riker, so unless he's wearing lifts in his shoes, then he's also taller than Q.
The late Kevin Peter Hall may have been the tallest professional actor at 7'2". Are you recruiting a TNG basketball team?
Not sure who Kevin Peter Hall is. Good idea. I'll probably bring in Q off the bench and let him bomb in three pointers from another galaxy.
Hall had the title role in Schwarzenegger's Predator, and played the Bigfoot in Harry and the Hendersons. He shows up in TNG's "The Price". http://en.memory-alpha.org/wiki/Kevin_Peter_Hall
Eric Menyuk is an attorney now, and has a website for his practice. You could send him a fan letter and ask.
Maybe I will. I doubt he'd answer such a question, though. I do remember the guy from "The Price" now. I can't recall the alien's name, though.