'I'm already yours': Proud father Chad Michael Murray welcomes the birth of his daughter and makes sweet pledge to newborn

Chad Michael Murray is one proud dad.

The former One Tree Hill star welcomed a baby girl with his wife, Sarah Roemer, 32, on Monday, and quickly took to Instagram to share a touching photo to mark her arrival.

In the photo, Chad's newborn daughter's tiny hand can be seen wrapped tightly around one of her dad's fingers.

Welcome to the world: Chad Michael Murray shared this heartfelt post on Instagram following the birth of his daughter on Monday

Welcome to the world: Chad Michael Murray shared this heartfelt post on Instagram following the birth of his daughter on Monday

Protective dad: 'Don't worry little girl you can hold on as tight as you want for as long as you want, I'm already yours & I'll never let go,' the actor wrote after his daughter was born

Protective dad: 'Don't worry little girl you can hold on as tight as you want for as long as you want, I'm already yours & I'll never let go,' the actor wrote after his daughter was born

'Don't worry little girl you can hold on as tight as you want for as long as you want, I'm already yours & I'll never let go,' he captioned the heartfelt image. 'I've now two incredible women in my life. My son & I are two lucky guys.'

The couple are already parents to a two-year-old son, after marrying in 2015.

Speaking about fatherhood, the actor said becoming a dad was by far the best thing that had ever happened to him.

Proud parents: The One Tree Hill star and his wife, actress Sarah Roemer, are also parents to a two-year-old boy

Proud parents: The One Tree Hill star and his wife, actress Sarah Roemer, are also parents to a two-year-old boy

A changed man: 'Having kids is a game changer and I think you're always walking around with the mentality that you want to make sure that they're proud,' he said

A changed man: 'Having kids is a game changer and I think you're always walking around with the mentality that you want to make sure that they're proud,' he said

'Having a family just changes your perspective on everything,' he told ET last year. 'I mean, it's a world changer.'

He says it's made him a better person, too.

'For me, it was the greatest thing that's ever happened to me,' added. 'Having kids is a game changer and I think you're always walking around with the mentality that you want to make sure that they're proud and you want to represent them well and just be a great leader.'

Beaming: 'I've now two incredible women in my life. My son & I are two lucky guys,' the 35-year-old actor wrote on Instagram following the arrival of his daughter on Monday

Beaming: 'I've now two incredible women in my life. My son & I are two lucky guys,' the 35-year-old actor wrote on Instagram following the arrival of his daughter on Monday

So in love: 'She Always Glows...' Chad captioned this photo of his then heavily pregnant wife on Instagram

So in love: 'She Always Glows...' Chad captioned this photo of his then heavily pregnant wife on Instagram

Consequently, the 35-year-old says he's now selective about the roles he plays and the projects he takes on.

'Just last week a project came up, and just due to the content alone, it wasn't something that I [want] my son to see when he grows up,' he confessed. 'It's not the type of material and I didn't feel like the payoff was worth it.' 

'You really have to weigh each choice, but at the same time, it is a job and it is just a craft - it's art performances. I don’t take it too seriously but I also want it to creatively push me. I want to take chances and I want to do things that are going to scare the crap out of me.'

Ecstatic: 'For me, it was the greatest thing that's ever happened to me,' the handsome actor confessed of fatherhood

Ecstatic: 'For me, it was the greatest thing that's ever happened to me,' the handsome actor confessed of fatherhood

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