•
Andy Lau as
Ching (逞哥), a mercenary who is a skilled martial artist and ace marksman, wielding a retractable sword, along with a magnum revolver as his sidearm. Although deeply in love with May-kwan, he has always been embarrassed to express his love for her. •
Anita Mui as
Yiu May-kwan (姚美君), Ching's love interest who is a fellow mercenary specializing in throwing and uses explosive Super Daggers (砲彈飛刀), and Magnetic Tailing (金屬追蹤器), which attracts the daggers to the target. • also portrays
Yiu May-wai (姚美惠), May-kwan's unfortunate older twin sister who considers Ching a jinx as she always gets hurt everytime she sees him. May-wai is also the inventor of Suffocate Bullets (窒息子彈), which shoots out fumes that can knock out the victim who inhales it. •
Aaron Kwok as
Silver Fox (銀狐), the disciple of Old Eagle who was entrusted by his mentor to seek revenge on May-kwan and wages a personal vendetta against her when she blinds his right eye with a dagger. His most powerful weapon are
Horrible Angel (
恐怖天使)
drugs which he inhales and allows him to go through his victims and transform them into his slaves in 24 hours. •
Gloria Yip as
Wai-heung (惠香), Siu-chuen's younger sister who studied in
Macau and a talented baseball player. After her brother dies, Ching trains her to be his assistant and she falls in love with him. •
Kenny Bee as
Siu-chuen (小村), a mercenary who is Ching and May-kwan's associate and also an ace marksman, wielding a Desert Eagle as his weapon. He is in love with the latter and had proposed to her, but his feelings are not reciprocated as she loves Ching. •
Carina Lau as
Madam of Pets (寵物夫人), a doctor who possess remarkable medical skills. She hides her face in a veil and would only reveal her face to a man that would marry her and is bitter towards Ching as he is the first man to see her face but refuses to marry her. •
Corey Yuen as
Invisible Doctor (隱形博士) /
Horrible Doctor (恐怖博士), a scientist who invented invisible chemicals, which gave him the former name, and the Horrible Angel drugs, which gave him the latter name. He only appears in the extended Taiwanese version where he hired Ching and Siu-chuen to transport and invisible guard snake of the
Egyptian pyramids back home. • Danny Poon as
Mr. Ford (霍都), one of the competitors fighting to marry the Madam of Pets who was almost the champion until he was defeated and humiliated by Ching. • Henry Fong as
Old Eagle (老鷹), Silver Fox's mentor who blinded by May-kwan's and imprisoned after failing his mission to assassinate Princess Yuki for the Green Dragon Society. After Silver Fox breaks out of a maximum security prison, he entrusts his disciple to avenge him and repays the favor by taking his own life. • Poon Fong-fong • Maggie Chan as
Elder Sister (婆婆), the Madam of Pets' second in command. • Yip San • Joanna Chan • Matthew Wong ==Release==