Evangelidis was born in Worcester, Massachusetts[1][better source needed] to Judith C., and her husband George L. an attorney.

[1][better source needed] Evangelidis attended the University of Massachusetts Amherst where he received a BS in Economics in 1983.

[2] After leaving the Suffolk County's District Attorney's office, Evangelidis went on to work for the Worcester, Massachusetts law firm of Pellegrini and Seeley.

[3] In April 2002 Evangelidis announced that he was going to be a candidate for election to the first Worcester District of the Massachusetts House of Representatives.

[3] On September 17, 2002, in his first bid for elective office, Evangelidis won the Republican nomination for the Massachusetts House of Representatives.