Ryan and his wife Blake made their first public appearance with their daughters - two-year-old James and their newborn daughter who is yet to be publicly named - in Hollywood on Thursday.
The Deadpool actor and his family were attending a ceremony to see Ryan honoured with a star on the Hollywood Walk of Fame, although it was daughter James who stole the show!
The tot could be seen supporting her dad alongside mum Blake from the sidelines during the ceremony, cheering excitedly.
The family of four then gathered for photos by Ryan's Walk of Fame star, giving fans the first real glimpse of the two adorable children.
During his speech, the star thanked his wife, saying: 'I want to thank my wife, Blake, who is sitting right there, who is everything to me.
'You are the best thing, the best thing that has ever happened to me - second only to this star. You make everything better, absolutely everything in my life better.
'You've made me the father of my dreams when I thought I only had fun uncle potential.'
Ryan and Blake welcomed their second daughter in September, although it's not yet known what baby name they've opted for. The actor has spoken openly about his love for his family in the past, and revealed in a recent interview how much their latest addition looks like two-year-old James.
Speaking to Entertainment Tonight, he said: 'They look alike. You can see that she's sort of a little mini version of our older girl.
'But, no, it's great. It's like an actually cohesive, working, functioning family. It's amazing to see my older daughter taking care of my younger one. The Lion King was right! The circle of life exists.'
Ryan - who married 29-year-old Blake in 2012 - also insisted that having a second child hasn't changed the 'dynamic' of their household.
'It didn't change the dynamic. There's just more. There's more love, there's more diapers. There's more of all that stuff, you know.'