< Heidi 6: Heidi lässt sie alle jodeln

• Erotismo ad alta quota 3 Italy, RD Communications
• Heidi Hola Teil 6 – laßt sie alle jodelen
• Heidi'X 6: Les Valseuses Alpines Video Marc Dorcel
• La Marchesa deglu Uccelli Italy, RD Communications

• Alice Wonder appears only in flashback scenes from Heidi 5
• Angelica Bella as Keti Kay, plays Zenzi
• Angi Baletti as Anja
• Cjilla March as Danny Miller or uncredited
• Deborah Wells as Vivian O'Hara, plays Frau Dehmel
• Georgina Lempin as Danny Miller or uncredited
• Illona Capriati
• Jana Grata as Danny Miller or uncredited
• Judith de Ville as Ditta
• Lara Sanchez plays Heidi
• XNK4901 non-sex, the narrator

See here.

Males -

• Hagen van Dries as Alex Hagen
• Patrick Naumann
• Siggi Enting
• first unidentified male as Hans Oellers, Luigiano Capo, Danny Miller or uncredited
• Rudolf Rogers as Rüdiger Kilthau
• second unidentified male as Hans Oellers, Luigiano Capo, Danny Miller or uncredited
• third unidentified male as Hans Oellers, Luigiano Capo, Danny Miller or uncredited
• Mike Silver as Hans Oellers, Luigiano Capo, Danny Miller or uncredited