Question about All The Wrons Spies 1983

http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng
Why Eric Tsang and Dean Shek are listed as cameo but not Karl Maka,he's also a japanese officer in the beginning.
Why Eric Tsang and Dean Shek are listed as cameo but not Karl Maka,he's also a japanese officer in the beginning.