When Lillebror's mother is mysteriously hurt in a biking accident, Lillebror and Knerten turn the town upside down trying to find the culprit.
Adrian Grønnevik Smith
as Lillebror
Åsleik Engmark
as Twigson (voice)
Pernille Sørensen
as Mother
Jan Gunnar Røise
as Father
Petrus Andreas Christensen
as Philip
Per Schaaning
as Eilertsen
Sampda Sharma
as Karoline (voice)
Amalie Blankholm Heggemsnes
as Vesla
Ole Johan Skjelbred
as Veslas Far (as Ole Johan Skjelbred-Knudsen)
Tone Beate Mostraum
as Bilmekaniker
Per Jansen
as Snekkeren
Gard B. Eidsvold
as Bussjåføren
