Mary is definitely not her real name. "Mary" was played by Diane Krey-Wesley and "Ken" by Jimmy Zinnai. I did not managed to get Ken's autograph because he passed away at the age of 17 in a motorcycle accident. That explains why the series of commercials did not continue after Ken's death. I think Ken & Mary would be best of friends today if that tragedy did not happen. As for the song which had a catchy tune in the commercial,I don't know if you like it but I like it so much that I bought the CD from Japan. The song is sung by "Buzz" who should be the "boy band" of Japan then.
When Jeff told me the story of Mary, I got interested and got myself hook since. I bought the Buzz CD as mentioned, I got Jeff to send me magazines which had articles written by him. I even suggested to him to request for Mary to autograph on my Hot wheels Skyline. So, I got it finally after a long wait. This should be the first Hot Wheels I will treasure as there are stories which I can relate to my friends.