She first gained recognition for her standout performances in French and British cinema, notably in Paris à Tout Prix (2013) and My Last Five Girlfriends (2009), where her talent truly began to shine. Over time, she became widely known for her recurring role as Victoire in the popular French TV series Clara Sheller, a part that further solidified her presence in the entertainment world. In addition to her acting career, she’s also made a name for herself as a recording artist—she released her debut album, My Name Is, in 2013, showcasing yet another dimension of her artistry.
Before fame took hold, she stepped into the spotlight in her late teens with a guest appearance on the television series Le Grand Patron, marking her screen acting debut. Born Cécile Crochon in Paris, France, she later adopted the stage names Cecile Cassel and HollySiz, both of which have become synonymous with her creative identity. She comes from a well-known artistic family—her father was the celebrated actor Jean-Pierre Cassel, and she shares sibling ties with Vincent and Mathias Cassel, both prominent figures in the entertainment industry. Throughout her journey, she has carved out a unique path, blending music and acting with grace and authenticity.
Her 2013 hit “Come Back to Me” reached a high point at number twenty-two on the French music charts.