René Schack began his studies at the École Internationale de Mimodrame de Paris Marcel Marceau and at the Conservatoire de Danse in Paris. After working as a mime and actor in France, Italy and Belgium, among other places, he completed his studies at the Hochschule für Musik und Theater in Hanover. This was followed by permanent engagements at the state theaters in Hanover and Braunschweig, the Schnawwl - the children's and youth theater of the Nationaltheater Mannheim, the state theater in Saarbrücken and the state theater in Oldenburg.

René Schack worked for several years as a lecturer for acting, physical theater and pantomime at the Summer Academy in Altusried and at the Freie Kunst-Studienstätte Ottersberg in the drama therapy course.

During his twenty-five years of acting in theaters, he often led youth theater groups and gave seminars on acting and improvisation for amateur theater groups, including for the Lower German Stage Association in Lower Saxony and the VBAT in Bavaria. He has also choreographed with the dance department of the Nationaltheater Mannheim and choreographed the opera chorus at the Staatstheater Saarbrücken.

As a director, he has also staged numerous plays in the region with amateurs. For example, with the open-air stage in Lohne and the Low German Theater in Neuenburg.

René Schack is also known for his solo plays such as “Die kleine Zoogeschichte” (The Little Zoo Story), which he himself has successfully performed for 20 years and which numerous theaters have restaged, as well as for his Wilhelm Busch evening.

René Schack has been working with the independent ensemble theater hof/19 for a number of years, including in productions that combine acting and dance, contemporary live music and video projection.