Thunderclump

Dunderklumpen lives all alone in the mountains of Jämtland. One Midsummer's Eve when he feels very lonely he sets off on a journey to find friends.

Beppe Wolgers

Himself

Jens Wolgers

Himself

Halvar Björk

Dunderklumpen

Håkan Serner

Lionel (voice)

Gösta Ekman

Dummy (voice)

Toots Thielemans

Pellegnillot (voice)

Lotten Strömstedt

Doll (voice)

Sif Ruud

Elvira Fattigan (voice)

Birgitta Andersson

Blomhåret (voice)

Stig Grybe

One Eye (voice)

Hans Alfredson

Bee (voice)

Kerstin Dunér

Self

Bert-Åke Varg

Old House (voice)