I think the most famous Q only appeared in the second or the 3rd movie (I know he 's in Goldfinger, but for FRWL I don't know)[Desmond Llewelin (sp ?) ] John Cleese appears in TWINE.
So maybe there is another one in the first movie, (not very probable though,but...)
PS: It's so funny to us acronyms everywhere. TISI, hahhaha 😛