Holt McCallany (Mindhunter, Lights Out), Aunjanue Ellis (When They See Us, Lovecraft Country) and Killian Scott (Dublin Murders, Damnation) have been tapped as series regulars opposite Courtney B. Vance in AMC’s courtroom drama series 61st Street from BAFTA-winner Peter Moffat. Andrene Ward-Hammond (Your Honor,…