Born in 1972 in Geneva, Valeria Bertolotto graduated from the SPAD in Lausanne in 1998. Since then, she has collaborated as an actress in numerous shows, under the direction of Claude Stratz, Andrea Novicov, Denis Maillefer, Marielle Pinsard, Alexandre Doublet, Natacha Koutchoumov, Emilie Charriot and Oscar Gómez Mata.
In 2014, she created the J14 Company with the actress Aline Papin, with whom she co-created, in 2016, at the end of a season of research devoted to Racine's Phèdre and autofiction, the performance Autofèdre.
From 2013 to 2020, she has been a regular lecturer at La Manufacture, both in theater and dance fields, within the framework of juries or interpretation workshops. In 2021, she is appointed academic head of the Bachelor in Theatre.