"Said he wrote a book," the actor quipped after running into the Duke of Sussex.
The "Wire" alum previously starred alongside the Duchess of Sussex in legal drama, "Suits," which aired from 2011 to 2019.
“Scoop” dramatizes how the team at BBC’s “Newsnight” landed a blockbuster 2019 interview with Prince Andrew.
The Japanese imperial family's social media debut comes 15 years after Britain’s royal family joined Twitter in 2009.
The Netflix show ended its six-season run last year.
The royal appearance comes a little over a week after the Princess of Wales revealed she'd been diagnosed with cancer.
The Princess of Wales announced last week that she had received a cancer diagnosis.
The late-night host addressed his comments about the Princess of Wales but didn't apologize.
It is not immediately known which other members of the royal family will attend Sunday's service, but the Wales family is not expected to be there.
Buckingham Palace previously announced on Feb. 5 that King Charles had been diagnosed with cancer.
