Russell Tovey showed off his impressive physique as he took to Instagram with a shirtless snap.

The actor rang in his 43rd birthday on Thursday during filming while he posing up a storm by the side of a pool.

He sported a pair of low-rise drawstring navy blue swimming shorts as he went shirtless while flexing his ripped biceps.

Russell captioned the post: ‘So this is 43. 43 years around the sun. I’ve actually always filmed on my birthday nearly every single year since I was 17. 

‘Some may say this has been unlucky scheduling but for me it’s always felt the biggest privilege to do what I do and to have done what I’ve done and in the words of Noel Coward “Sometimes work is more fun than fun.”

Russell Tovey showed off his incredibly ripped physique as age-defying actor celebrated his 43rd birthday on Thursday

Russell has documented his impressive body transformation with shirtless snaps on Instagram (pictured looking noticeably less muscly in a previous shirtless snap in 2018)

‘Thanks for all the messages – very lovely to wake up to after a week of great but intense night shoots and thanks to all those the most loyal – you mean the world.’

Since October, Russell has documented his impressive body transformation with shirtless snaps on Instagram.

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Last month, he struck a serious expression as he posed for a mirror selfie while flaunting his muscular physique and toned abs. 

Sharing details of his health kick, Russell also took a snap of his high protein breakfast which consisted of spinach, scrambled eggs and mushrooms. 

The star is currently working on the new Doctor Who spin-off the War Between The Land And The Sea and seems to be have gotten in excellent shape for the role.

Russell is starring alongside Loki star Gugu Mbatha-Raw in the five-part series created by Russell T Davies.

The series will follow a ᴅᴇᴀᴅly conflict sparked by an ancient species walking out of the sea, with fans speculating this could be the Sea Devils who last appeared on Doctor Who back in 2022.

Describing the project Davies said: ‘I’m so lucky to work with such a magnificent cast. 

Russell captioned the post: ‘So this is 43. 43 years around the sun. I’ve actually always filmed on my birthday nearly every single year since I was 17’

In October, Russell struck a serious expression as he posed for a mirror selfie while flaunting his muscular physique and toned abs

Sharing details of his health kick, Russell also took a snap of his high protein breakfast which consisted of spinach, scrambled eggs and mushrooms

‘And this is a huge, muscular, thrilling drama which will shake the whole universe [the Doctor Who extended universe] to its foundations.

‘When the Doctor’s not in town, the whole of humanity is in trouble.’

Filming for the series began in August as Russell is joined by fellow cast members Ruth Madeley, Colin McFarlane, Jemma Redgrave and Alexander Devrient.

Russell previously opened up about his fitness routine back in 2020 when he revealed that eight years prior he decided to get ‘proper fit’.

Speaking to GQ he explained: ‘As well as improving my fitness, I feel more present in the world, feel better in my body. Because I definitely have anxieties and hang-ups about myself. Hundred per cent.’

The star revealed he isn’t a fan of fad workout trends and instead dedicated one day to chest and arms, one to shoulders and triceps, another to back and abs and a final day to legs.

The star is currently working on the new Doctor Who spin-off the War Between The Land And The Sea and seems to be have gotten in excellent shape for the role

He explained: ‘I like what I do. I can lift heavy, but I’m confident that I’m not going to screw myself up, because when you get them injuries when you do lift wrong, they’re really debilitating and really screw you up.’

Scrambled eggs is his go to breakfast as he added: ‘Eggs every day. Always have eggs, organic, preferably, but you never know if you’re ordering from a restaurant. I try to have a carb meal every day.

‘I think my natural demeanor – maybe it’s in my head now – is I’m slight and I feel I need to eat more than I need. 

‘So I have a carby meal. I love a katsu curry – pumpkin katsu curry. I love Japanese bento boxes and I love salmon. And bananas’.