the vid quality is too poor to pick out the faces. according to the wiki tvb lists, the chinese title is 迫上梁山, starring 石修、黃元申、江毅、李家鼎、盧海鵬、施明 shek sau, wong yuen sun, kong ngai, lee kar ting, lo hoi pang, see ming.
the light barge traverses endless mountains
Characters from The Water Margin usually have strong images, at least the well known ones.
The fourth one is Lo Hoi Pang (盧海鵬) who was indeed the hunchback in the Book and Sword series. His role is Lu Zhishen, the "Flowery Monk".
The fifth one is probably Shek Sau as Wu Song, the "Pilgrim" (in his pre-pilgrim attire).
The lady is Cecilia Wong as Pan Jinlian.
The guy next to her is Li Kui, the "Black Whirlwind", with his twin axes. Unfortunately I couldn't find who the actor is.
The top three all look similar and quite a few characters fit their image and I'll just guess.
The one on the right seems to be Kwan Hoi-San? He plays Chao Gai, the "Pagoda-Holding Heavenly King". (Which is a bit uncharacteristic since usually Chao Gai has a thicker beard and looks more powerful.)
The one on the left has a deep thinking look which might be Wu Yong, the "Knowledgeable Star". The Baidu article seems to have missed this character as well.
That leaves the one in the middle, which is likely Song Jiang, the "Protector of Justice", played by Kong Ngai. His wiki picture seems similar. This is also a bit uncharacteristic because Song Jiang usually has darker skin.)
Here's a song about the "Black Whirlwind" with some same pictures.
Thank you so much yenchin, you are a living Bible !!
Yes, I recognized Kwan Hoi San and Kong Ngai in the second clip, as well as Kwan Hoi San's son Kwan Chung.
I had a doubt about the third guy whose name I asked for, but now that I saw that Wong Yuen San also plays in it, I'm almost sure that it's him on the third picture on the top of the LP.
I finally found a list of the ATV (Rei TV and also Li TV) list on wikipedia, and I noticed that they say that the first TV series in which played Wong Yuen san was Young Wong Fei Houg, but they are wrong, since he played in this TVB series Water Margin in 1977, and I also got another 1977 TVB series in which he was the hero : Unknown hero, base on the Shaws' movie Anonymous heroes...
the song that yenchin linked is a subtheme of the same series!
the vid listed the following cast (very familiar names!) (i'm only listing the actors because to find the pinyin for the characters takes me forever):
演員表 角色 演員 林沖 黃元申 wong yuen sun 魯智深 盧海鵬 lo hoi pang 張明珠 李司棋 lee see kei 武松 石修 shek sau 潘金蓮 黄杏秀 wong hang sau 西門慶 關聰 kwan chung 武大郎 龐焯林 pong cheuk lam 宋江 江毅 kong ngai 閻婆惜 林建明 lam kin ming 花榮 羅浩楷 law ho kai 陸謙 黃百鳴 wong pak ming ?? 惠天賜 wai tin chi 劉唐 談泉慶 晁蓋 關海山 kwan hoi shan 雷橫 張雷 cheung lui 扈三娘 施明 see ming 錦兒 莊文清 chong man ching ?? 金興賢 kam hing yin ?? 李家鼎 lee kar ting 高俅 李誌中 lee chi chung 王倫 蕭亮 siu leung