Who plays ADA Martin Richardson on Blue Bloods cast? Justin Walker White gets a chance to shine
The Blue Bloods cast will include character ADA Martin Richardson on an all-new episode of the show. This is the fall finale of the show and actor Justin Walker White is going to have an important guest-starring role. Erin Reagan (played by Bridget Moynahan) will give a high-profile case to a young ADA under her tutelage. That