He recently revealed that series six of the hit BBC series is in the pipeline.
And Martin Compston has taken some down time as he spent the day running errands with his wife Tianna Chanel Flynn on Saturday.
The star, 34, who plays the lead role of Anti-Corruption Unit Detective Sergeant Steve Arnott in the Line Of Duty, looked happy and relaxed as he cruised the supermarket with his sweetheart.
Supermarket sweep: Martin Compston, 34, looked happy and relaxed with his wife in Las Vegas on Saturday
Martin kept it casual in a grey t-shirt that clung to his muscular frame and a pair of navy blue chinos.
He strode around Sin City in a pair of Converse all stars trainers for his trip down the shop aisles.
Tianna followed suit in black Converse trainers and slung on a pair of denim dungarees and covered up with a sporty jacket.
The couple set themselves up for the day by enjoying lunch at American eatery PT Gold, followed by stocking up on supplies at the supermarket.
Busy day: Alongside the Line Of Duty actor was his wife Tianna Chanel Flynn
Proving that he cannot keep his hands off his wife, Martin playfully grabbed the natural beauty's peachy bottom as she walked in front of him as he played the doting husband and held open the door.
The Scottish star and Tianna's trolley was pilled high with water bottles, sparkling flavoured water, an air humidifier and they also treated themselves to a large packet of crisps.
Gentleman: Martin played the doing gentleman by holding open the door
Cop a feel! The star who plays the lead role of Anti-Corruption Unit Detective Sergeant Steve Arnott grabbed his wife's perky bottom
Cheeky! The actor could not keep his hands off his stunning other half
Lunch date: The couple set themselves up for the day by enjoying a nice lunch at American eatery PT Gold, followed by stocking up on supplies at the supermarket
The pair were also seen loading the shopping into their silver Greenok-plated fiat - seemingly a homage to his hometown.
Martin married American actress Tianna in a lavish Scottish ceremony in 2016.
Martin and Tianna met in 2013 following the demise of his relationship with girlfriend of five years Stacey McKelvie.
The actor recently hinted he may not be returning to his lead role Anti-Corruption Unit Detective Sergeant Steve Arnott for the next season.
Appearing on This Morning in March, the star said it had been a 'great' seven or eight years in the role as he thanked TV bosses for a 'job of a lifetime'.
