David Tennant is every inch the doting dad as he takes his children swimming 

David Tennant is every inch the doting dad as he takes his son Wilfred, 7, and daughter Doris, 5, swimming

He is gearing up for the release of ITV drama Des, in which he plays notorious serial killer Dennis Nilsen. 

But David Tennant was on dad duty on Saturday as he took two of his five children for swimming lessons in London. 

The actor, 49, cut a casual figure in a black Beatles T-shirt and a baseball cap. 

Doting dad: David Tennant was on dad duty on Saturday as he took two of his five children for swimming lessons in London

David teamed the look with mustard corduroy trousers, trainers and carried a grey tote bag. 

Doris, five, looked adorable in a unicorn onesie and looked ready for her swimming lesson as she donned a blue swimming cap, while Wilfred, seven, rocked a camouflage onesie. 

The former Doctor Who star was every inch the doting dad as he held their hands while they headed to the pool.  

Casually-clad: The actor, 49, cut a casual figure in a black Beatles T-shirt and a baseball cap

Casually-clad: The actor, 49, cut a casual figure in a black Beatles T-shirt and a baseball cap

Low-key look: David teamed the look with mustard corduroy trousers, trainers and carried his children's essentials in a grey tote bag

Low-key look: David teamed the look with mustard corduroy trousers, trainers and carried his children’s essentials in a grey tote bag

Just keep swimming: Wilfred, seven, rocked a camouflage onesie

Just keep swimming: Wilfred, seven, rocked a camouflage onesie

Sweet: The former Doctor Who star was every inch the doting dad as he held their hands while they headed to the pool

Sweet: The former Doctor Who star was every inch the doting dad as he held their hands while they headed to the pool

David and Georgia have five children; Ty, 18, Olive, nine, Wilfred, Doris and Birdie, 11 months. 

Georgia confirmed the arrival of her fifth child last year with a hilarious Instagram post, as she compared the birth to that of David’s Good Omens co-star Michael Sheen’s daughter Lyra. 

The actress became pregnant for the first time as a teenager after a fleeting relationship with a university student, which resulted in the birth to Ty at 17. He was later adopted by David in 2012. 

Ty revealed the name of his youngest sibling during an appearance on Lorraine in March, excitedly telling the host he wanted to give a shout-out to his family.

Exciting: Doris, five, looked adorable in a unicorn onesie and looked ready for her swimming lesson as she donned a blue swimming cap

Exciting: Doris, five, looked adorable in a unicorn onesie and looked ready for her swimming lesson as she donned a blue swimming cap

He said: ‘Hi mum, I love you mummy. Hi dad, Wilfred, Olive, Doris, Birdie… I love you all. Sorry, I’ve always wanted to do that,’ which led Lorraine to agree that he ‘had all the family covered.’

During the interview, Ty also spoke of the moment he met his adopted dad on the set of Doctor Who when he was just five years old. 

The budding actor spoke of his close bond with the sci-fi superstar whom he calls his father, and why he would love to be the third Doctor in the family. 

David met Ty’s mum when she had a guest role in the 2008 episode The Doctor’s Daughter – and it was then when Ty met his TV hero.

‘It was great, I was five when I first met my dad, my mum was working on Doctor Who at the time,’ Ty said.

‘I watched him on TV as the hero, and it was crazy how much your life can change.’

Family: David and wife Georgia are proud parents to Ty, 18, Olive, nine, Wilfred, Doris and Birdie, 11 months (pictured last month)

Family: David and wife Georgia are proud parents to Ty, 18, Olive, nine, Wilfred, Doris and Birdie, 11 months (pictured last month)