TVB replayed this TV series a couple of years ago and I watched almost every episodes of it.... yes, 杜其峰 was one of 賈思樂's classmates, he's called Johnny in the series, but I didn't know/couldn't recognise that it was 杜其峰 throughout the series as he was so so so skinny back then!! ....until on the last episode, when his real name was reviewed on screen, then I knew it was him!!