das KOLLAKTIV   =   Rosalin Hertrich   +   Sophie Ketteniß   +   Marc Carrera


Rosalin Hertrich is performer, theatre artist and lecturer for theatre pedagogy. She completed studies 2009 in Theatre- & Media Science in Erlangen/ Utrecht (Magister) and graduated 2013 in theatre pedagogy (BuT®) in Nürnberg. In Berlin, she became 2014 somatic educator (MOC). 

During her studies, Rosalin has been active member of the german-czech theatre group Cojc Land Ensemble, also leading numerous intercultural theatre projects for young people and students. At university, she staged several experimental theatre plays (Faust 3.0, 2007; Kollision Alltag, 2008). Next to her theatre activities she worked as a culture journalist.

In 2014, Rosalin moved to Berlin to join the Physical Theatre intensive training, led by Samuel Nuñez and Marc Carrera and to assist there. 2017 she founded with Marc Carrera and Sophie Ketteniß the Physical Theatre teaching community DAS KOLLAKTIV.

In her performance projects, Rosalin combines the elements from her knowledge of theatre and movement in the search for new ways of performative expression. Therefore she uses approaches from somatic work, physical theatre, dance and Butoh. She explores sociological and philosophical thoughts and phenomena of contemporary society in a performative-bodily way, transforming them into choreography, movement and images. At Tatwerk Berlin she led two choreographic-performative projects: 2015 (DIS)POSITIONED (with Kathrin Keusch); 2016 OUT OF BALANCE.

In 2016/17 she collaborated with the Prague based experimental theatre group Spielraum Kollektiv. In 2017 she performed in Luther, Dancing with the gods for Robert Wilson and Rundfunkchor Berlin. In 2018 she co-founded the artistic theatre group HALBBILD that premiered in the same year with the piece NEBEL.


Sophie Ketteniß is an interdisciplinary theater and dance artist and a studied linguist. Born and raised in Berlin, Sophie developed her first theater plays amongst an intergenerational theater group lead by dance theater pedagogue Elena Bronsert in the city’s eastern periphery. She later participated in youth dance projects run by Faster-Than-Light-Dance-Company: “ZweiNsamkeit” (2009/Theater an der Parkaue) and “Orgel trifft Tanz” (2010/Berliner Dom).
Whilst living in Scotland, she joined a Script Writing class guided by writer Raymond Ross that united a diverse group of local and temporary Edinburghians. Dismantling barriers of language, class, gender and age furthermore inspired her belief in the power of a subaltern community-based approach to theater and storytelling.
From 2014 on, Sophie trained in physical theater, contemporary dance and butoh with Chilean director, actor and choreographer Samuel Nunez in Leipzig and Berlin. In 2016, she gladly took the chance to undertake a Traineeship as director’s assistant with choreographer Constanza Macras/Dorkypark for the production “ALBUM”. From March to December 2016 she was a member of the physical theater company project at Tatwerk Berlin, developing and performing in the production “STEPPE”. In 2017, she started to teach in the Physical Theater class at Tatwerk.
Her personal interest in dance pursues the questions of how to gain insight on a physical level and how to work with the body in order to initiate knowledge.
Besides working as a sign language assistant for deaf school children, she is currently developing her new project “NEBEL” within a performance collective on intergenerational remembering and the transformation of values.


Marc Carrera studied Philosophy at the University of Barcelona. In parallel, he engaged in several political art/protest/action groups of the city starting at the same time his practice in physical theatre, contemporary dance, and Butoh dance. He took part in the three-year-long Transdisciplinary Theatre Workshop led by Derek Fenix, Samuel Núñez & Shaday Larios. Was founder member of two theatre companies: La Quadra Màgica by Pep Riera (political/satirical theatre), and Microscopía Teatro by Shaday Larios (object/visual/experimental theatre). He also founded the electro-pop-art-band Zink Tank.

Together with Pep Riera, they launched the Espai Navæ, a brick-factory-space entirely dedicated to performing arts which could last only 8 intensive months. Short after its closing in 2008, he decided to leave Barcelona permanently and move to Berlin to support Samuel Núñez founding the Tatwerk Berlin.

He took active part in the Tatwerk Ensemble besides to creating own short pieces and collaborating as performer, dancer, and actor in other’s projects. He was part of the Theaterkapelle Team both as an actor and a graphic designer for two years. In 2012 he took over the direction of Tatwerk Berlin for almost three years where he could  implement the classes structure and workshops, the artistic residency program, and the regular showings, turning the atelier into an artist-run space for theatre, dance, and performance. In 2013 he was awarded with the Jury Prize at the 100º Festival Berlin Sophiensæle for his dance-theatre piece Tanz Europe Express.

In 2017 he completed the two-year program MA in Performance Studies at the University Hamburg and finished the artistic residency Limited Edition at the K3 Zentrum für Choreographie | Tanzplan Hamburg with the piece O a O, based on repetition. He is currently developing upcoming dance projects to be premiered in Hamburg in the fall 2018.

His work is strongly based on the physical and the choreographic, stressing and emphasising the political aspects and the discursive potential of the performative body on stage.