‘GMA’ Co-Anchor Amy Robach Preps for Her Primetime Close-up on ‘Castle’

— -- “GMA” co-anchor Amy Robach is ready for her close-up ... on the primetime hit “Castle.”

She’ll appear on Monday’s episode opposite actors Jon Huertas (who plays Javier Esposito) and Seamus Dever (who plays Kevin Ryan) in a scene where she’ll play TV reporter Lila Campo.

“GMA” went behind the scenes with Robach, visiting her trailer and following along as she went for her wardrobe fitting and hit up craft services for dinner.

Her co-stars gave her some pointers.

“Generally, with TV simplicity and truth kind of wins out,” Dever said. “So, especially with what we do. So, you're doing great.”

After rehearsing with her castmates, they took her on a tour of the set, including their desks and the familiar interrogation room.

Then, it was time for Robach to channel her inner Campo.

Watch the video to see a sneak peek of her scene.