Ailen Sit appeared in Ging chaat goo si III: Chiu kup ging chaat (1992) as Panther's helicopter pilot. He plays a different character here as "Po". Then, he portrayed a Golden Dragon Club Member in Ging chaat goo si 4: Gaan dan yam mo (1996).
Yu Rongguang played as David Chang would later played as Commander Chiu in New Police Story (2004) and Captain Wu in Police Story: Lockdown (2013).
Mars appeared in the previous two films as Kim. He plays a different character as Panther's Man in Police Story 3: Supercop (1992). Here he played as Jewelry store Patron.