

Identical twins are separated at birth, one becoming a streetwise mechanic, and the other an acclaimed classical concert conductor. Finally meeting in adulthood, they're mistaken for the other and entangled in each other's worlds.

Jackie Chan
Ma Yau (John Ma) / Bok Min (Boomer)

Maggie Cheung
Barbara

Nina Li Chi
Tong Sum (Tammy)

Teddy Robin
Tarzan (Tyson)

James Wong Jim
Mr. Ma

Sylvia Chang
Mrs. Ma

Kirk Wong Chi-Keung
Crazy Bull

David Chiang Da-Wei
Sgt Chiang / Hotel Security

Mabel Cheung Yuen-Ting
Tsui

Alfred Cheung Kin-Ting
Boss Yung

Johnny Wang Lung-Wei
Wai

Anthony Chan Yau
Hotel Concierge

Jacob Cheung Chi-Leung
Cafe Cashier

David Wu
Cafe Waiter

Philip Chan Yan-Kin
Hotel Manager Chen