Heidi leaves her beloved Alm and moves to Frankfurt, where she finds a new good friend in Clara. Aunt Dete wants Heidi to leave her grandfather on the mountain pasture and go with her to Frankfurt, where she is supposed to live with the Sesemann family and keep their paralyzed daughter Clara company. In this way, Heidi would enjoy an excellent upbringing and grow up with one of the richest families in Frankfurt. Aunt Dete sees a bright future for Heidi in the city. However, this idea is not met with enthusiasm by Heidi and her grandfather, Peter and his grandmother are also very reluctant to let Heidi go. After much persuasion and many promises from Aunt Dete, Heidi finally leaves her beloved mountain world with a heavy heart and travels to Frankfurt.
| Actor | Role |
|---|---|
 Gianfranco BelliniSebastian (doppiaggio italiano) | Sebastian (doppiaggio italiano) |
| CClelia BernacchiNonna di Peter (doppiaggio italiano) | Nonna di Peter (doppiaggio italiano) |
 Rosetta CalavettaSig.ra Rottenmeier (doppiaggio italiano) | Sig.ra Rottenmeier (doppiaggio italiano) |
 Luciano De AmbrosisSig. Seseman (doppiaggio italiano) | Sig. Seseman (doppiaggio italiano) |
 Arturo DominiciDr. Classen (doppiaggio italiano) | Dr. Classen (doppiaggio italiano) |
 Germana DominiciZia Dete (doppiaggio italiano) | Zia Dete (doppiaggio italiano) |
 Sergio FiorentiniNonno di Heidi (doppiaggio italiano) | Nonno di Heidi (doppiaggio italiano) |
 Francesca GuadagnoHeidi (doppiaggio italiano) | Heidi (doppiaggio italiano) |
 Riccardo RossiPeter (doppiaggio italiano) | Peter (doppiaggio italiano) |