The Viennese detective children Biggi, Patrick and Luke find a key in dragon form, and their curiosity is aroused. They realize that the sinister Lady Q is interested in opening the legendary moon palace and find the elixir which is believed that promises eternal youth. The Tigers must prevent that Lady Q enters into possession of the priceless liquid.
Helena Siegmund-Schultze
as Biggi
Bruno Schubert
as Patrick
Justus Kammerer
as Luk
Iris Berben
as Lady Q
Stipe Erceg
as Munroe
Soogi Kang
as Cousine Mae
王德顺
as Cheng
Simon Schwarz
as Krops
Wong Lilin
as Frau Bai
Nina Proll
as Mrs. Papus
Richard Pfaff
as Bigis Vater
Fred Maire
as Cheng (voice)
