小魔怪乃飞虎队成员，因一次出错，被调派至行动组与雷公共事，二人成斗气冤家。威威李乃变节卧底，罪证菲林辗转落在李女友Rosa手中，后来李遭反派毒手；小魔怪和雷公凭机智及运气终把坏蛋们绳之于法。
Yuen Biao
'Little monster' Hsia
Lowell Lo Koon-Ting
'Mustache' Lei Kung
Lu Hsiao-Fen
Rosa
Kara Hui Ying-Hung
Lei Kung's sister
Paul Chun Pui
Mr. Tien
James Tien Chun
Wang Ping Tang
Charlie Cho Cha-Lee
Li Wei Feng
Dick Wei
Tang's assistant in white suit
Paul Chung Fat
Tang's assistant in black suit
Huang Ha
Chui Chow Han
Pan Yung-Sheng
Roger
Billy Ching Sau-Yat
Siu Ba Wong
Hsu Hsia
Boss Ho
Ka Lee
Traffic cop
