|Full name||Nicolas Sébastian Frey|
|Date of birth||6 March 1984|
|Place of birth||Thonon-les-Bains, France|
|Height||1.87 m (6 ft 2 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15 January 2017.
Born in Thonon-les-Bains, Haute-Savoie, Frey played exclusively at amateur level in his country, joining AS Cannes' youth system at the age of 10 and appearing in two seasons for its reserves as a senior. In 2004, aged 20, he moved to Italy with A.C. Legnano, in Serie C.
After one year, Frey signed for Serie B club Modena FC, being an important first-team member during his spell and appearing in 62 league games in his last two years combined. In the 2008 summer, he joined A.C. Chievo Verona in a co-ownership deal along with Angelo Antonazzo, in exchange for Salvatore Bruno and Michele Troiano; he made his Serie A debut on 5 October 2008 in a 0–2 home loss against ACF Fiorentina, and finished his debut campaign with 21 league games as the Verona side retained their division status.
On 17 July 2009, Chievo signed Frey on a permanent basis. During his spell with the club, he often shared right-back duties with Gennaro Sardo.
- "Comproprieta'. Il Modena riscatta Troiano e Bruno" [Co-ownership. Modena rebuys Troiano and Bruno] (in Italian). A.C. Chievo Verona. 25 June 2008. Retrieved 2 June 2010.[dead link]