Bo Jakobsen
Benny (voice)
Jesper Klein
Tadpole (voice)
Peter Belli
Octopus (voice)
Jytte Abildstrøm
Dagny (voice)
Otto Brandenburg
Lobster Boy (voice)
J
Jytte Hauch-Fausbøll
Benny's Mother (voice)
R
Rolf Krogh
Ornithologist (voice)
Povl Dissing
First Pirate (voice)
Per Bentzon Goldschmidt
Second Pirate (voice)
P
Per Tønnes Nielsen
Cowboy (voice)
A
Aya
Mermaid (voice)
M
Maia Årskov
Mermaid (voice)
Trille
Mermaid (voice)
C
Christian Sievert
Crab (voice)
A
Allan Botschinsky
Seahorse (voice)