What a nice tribute to Ridley. Sounds like he was a delightful cat; you must miss him a lot. I've always especially loved black cats, but an orange one just found us and he's a sweetheart.
No, I don't know any cats that have lived in more than one country. Puff, my cat at the time I got married, ended up moving with us 11 times, six different states. My parents kept her for a few months when the only rental we could find wouldn't allow pets.
I volunteer at a shelter now and the number of cats there because their people had to move is shocking. Makes me angry, too, because some of them are older and may never be adopted.