Meghan Markle had security on a set of costumes

It's hard to believe your colleague is dating members of the royal family – ask Meghan Markle Suit costars!

Wendell Pierce, who played Mega's father on the drama of USA Network, recently said Additional how he realized that the actress's relationship with Prince Harry was in full swing.

"Actually, I did not think it was real, then suddenly I turned around and there is this type of MI-5 [British security service] on the set every day, "he explained.

Pierce, 54, added that Meghan is doing "wonderful" in her new role as Duchess of Sussex.

"The only thing that was clear, she was extremely happy … She had a glow," the Jack Ryan shared star "I knew she was in love … With the whirlwind of advertising and the world of royalty, the only thing that remains constant is the fact that I know she loves him.

Meghan Markle and Prince Harry

Yui Mok – WPA Pool / Getty

Before his relationship was in the international spotlight, Pierce told Harry Connick Jr. Harry that she spoke of Prince Harry shyly.

"She met this nice guy and we always talked about him in code. You know, how are you? Oh, I'm going to London, I'm from London, whatever, "Pierce explained.

USA Network announced the departure of Meghan from the judicial drama in a statement congratulating the actress for her commitment in November.

"We all wish USA Network and Universal Cable Productions our sincere congratulations to Meghan Markle and Prince Harry for their commitment," the statement said. "Meghan has been a member of our family for seven years and it was a joy to work with her. We want to thank her for her undeniable passion and dedication to Suitand we wish him the best.

ASSOCIATED VIDEO: Meghan Markle goes out with Prince Harry to celebrate the wedding of a friend

Talk to The telegraph Recently, Wendell recalled that Meghan and he had filmed the scenes of the marriage of his character, Rachel Zane, a few months before his big day.

"We had a moment that I cherished," said the actor. "I was sitting with Meghan in her wedding dress, while we were waiting for a staging. We were alone. I told him, "Your life will change. It's going to be amazing, but I want you to know that I'm your friend and no matter where you are and what's going on – if the fishbowl you're in is starting to join you – you can call me .