Michelle made her debut in the BBC One drama on Wednesday night and, before the show aired, was pictured in London with her handsome hubby.
Walking through Leicester Square, the couple were grinning from ear-to-ear as they made their way to a waiting car. Both wearing their wedding rings, Mark and Michelle looked relaxed and upbeat as they strolled along together.
Earlier in the day, Michelle had told Radio One's Nick Grimshaw that she finds it "annoying" when people suggest her marriage is on the rocks.
She admitted: "It's SO annoying. I don't even read it anymore as it winds me up! So I just let it run now. There's only so many times you can say it's not true and I'm not wearing my ring for this reason."
Later, Michelle DID explain to This Morning's Holly Willoughby and Phillip Schofield that she did not wear her wedding ring while filming Our Girl in South Africa, through fear of it getting lost or stolen.
Meanwhile, fans were delighted with Michelle's debut in the military-themed drama. One viewer tweeted: "@michkeegan Amazing first episode of #OurGirl one of my favourites and glad your back on the TV, already loving it!" Another added: "Loving #OurGirl on BBC1 @michkeegan is amazing."
Our Girl continues next Wednesday at 9pm on BBC One.