“I’m really excited about ‘Downtown Abbey’ because I’ve been working on the show for years and years,” she said.
“I love working with the cast and the crew, so it’s great to be able to be a part of the show and I hope everyone is as excited as I am.”
The actress said she was “really happy” with the decision.
“This is really a very exciting time for me,” she added.
“It’s my first big project.
Downtons Abbey” is scheduled to air on HBO on January 11, 2019.