Free Souffriau as Mieke Fonkel / Mega Mindy

Jim Bakkum as Achiel / Waterman

Liliana de Vries as Anita

Fred Van Kuyk as Opa Fonkel

Nicky Langley as Oma Fonkel

Anton Cogen as Commissaris Kamiel Migrain

Jeremy Vandoorne as Xavier

Jana Geurts as Olivia

Jelle Florizoone as Rick

Jeron Dewulf as Jones

Frans Maas as Kolonel

Matthias Temmermans as Bliep (voice)

Chris van den Durpel as ROX (voice)

Edward Mercieca as Duncan

Marylu Coppini as Magdalena

Elena Vella as Young Anita