Pascale Petit hailed from Paris and was 'discovered' while working as a hairdresser in a Carita salon by
Françoise Lugagne, the actress-wife of director
Raymond Rouleau. Rouleau proceeded to direct Petit's screen debut as Mary Warren, erstwhile accuser at the Salem witch trials of 1692 and later confessed 'witch', in
The Crucible (1957). Despite having no formal acting training, she made an indelible impression with back-to-back performances in
Marcel Carné's film,
The Cheaters (1958) and in
Alexandre Astruc's
One Life (1958) (as the servant girl Rosalie). Her performance won her a coveted Prix Suzanne Bianchetti as Most Promising Young Actress of 1958. She followed up her success with a title role in the comedy
Julie the Redhead (1959) and a co-starring role along
Micheline Presle in
A Mistress for the Summer (1960).
During the following decade, Petit was seen predominantly in German and Italian co-productions. She portrayed Cleopatra during the internecine struggles with her brother Ptolemy in
A Queen for Caesar (1962) and helped American super spy
Ray Danton foil a Soviet plot in
Code Name: Jaguar (1965). In 1966 Petit married Belgian singer/songwriter and actor
Giani Esposito, whom she met in 1959 and became partners. They had a son and a daughter while living in Italy. She next joined
Stewart Granger,
Lex Barker and
Pierre Brice in the lackluster
Killer's Carnival (1966) and helped American agent
Darren McGavin track down a traitor in the above-average espionage thriller
Berlin Affair (1970), set in Berlin at the height of the Cold War.
With fewer decent film roles coming her way in the 70s and 80's, Petit turned her attention towards acting in French television series and made-for-TV movies, but failed to recapture the success of her early career. She published her memoirs in 2022, entitled 'Une vie sans tricher' (A Life without Cheating).