The upcoming series stars Janet Montgomery (Human Target) as Martina Garretti, a working-class lawyer who must compete with her snobbish colleagues at a New York firm.
Ringer star Polaha will play Nolan, a charming and established lawyer who is part of the 'Manhattan elite', TVLine reports.
The 35-year-old actor played Henry on Ringer until the CW series was axed in May.
He also starred in the CW's Life Unexpected and has played guest roles on Mad Men, Bones and CSI: Miami.
Made in Jersey will air on Fridays at 9/8c on CBS this fall.
> The Wire star Pablo Schreiber exits CBS drama Made in Jersey
Watch a trailer for Made in Jersey below: