Martyne is a postgraduate in economic science and eventually decided to switch careers and become a comedienne. She works regularly in the theatre, and immersed herself in the economic universe with Court Sucré ou Long Sans Sucre where she shared a billing with Olivier Yéni. They also worked together on Echauffements Climatiques in 2009 as well as on public speaking awareness workshops, and sketches that she interprets for Acte Sept.