The main cast of Will Trent Season 3 includes:
- Ramón Rodríguez as Will Trent, a highly skilled GBI special agent
- Erika Christensen as Angie Polaski, an Atlanta PD Homicide detective and Will's childhood friend
- Iantha Richardson as Faith Mitchell, a GBI special agent
- Jake McLaughlin as Michael Ormewood, an Atlanta PD Homicide detective
- Sonja Sohn as Amanda Wagner, the GBI Deputy Director
- Gina Rodriguez as Marion Alba, Assistant District Attorney (introduced in Season 3)
- Bluebell as Betty Maria White Trent, Will's chihuahua
Additional notable recurring cast in Season 3 includes:
- Scott Foley as Dr. Seth McDale, Angie's new love interest
- Antwayn Hopper as Rafael Wexford, Will's friend who appears in the premiere
- Kyrie McAlpin as Sunny Wexford, Rafael's daughter
- Douglas Smith as Special Agent Gross, Faith's new partner
- Sara Antonio as Gina Ormewood, Michael Ormewood's wife
- Jophielle Love as Cooper Ormewood, their daughter
- Owen Trumbly as Max Ormewood, their son
Season 3 consists of 18 episodes and airs on ABC on Tuesdays at 8 pm ET.
For episode-specific guest stars, such as in episode 13, there are additional actors like Heather Fusari, Michael Maize, Isaiah Stratton, and others involved.