The "Theatergruppe Kaltern" was founded in 1986 - every year, its amateur actors present a new play in German language or South Tyrolean dialect which is staged several evenings. Usually it is a comedy or a droll story called "Schwank", that's to say a conversation between two or more people regarding funny things. The performances shown so far include "Die Nacht der Nächte" (The night of the nights) and "Die fromme Johanna" (The pious Joan).

The second theatre club of Caldaro, known as "Heimatbühne Kaltern", presents above all cabarets at the village hall, such as "Das perfekte Desaster Dinner" (2019, The perfect disaster dinner). Its theatre programme is completed by open-air performances by the well-known comic duo "Prantl & Prantl" in summer, taking place near the Kettmair Winery.

The two adult theatre companies are complemented by a children's and youth theatre called "Innenseite" (Inner side). This company performs usually in the months between October and June, also at the Children's Theatre Festival in Appiano.