The This Is Us alum — who spent six seasons exploring the trials and tribulations of family — just welcomed a baby with wife Jarah Mariano ... and the paw of their dog, Duke.

Jarah Mariano took to her Instagram account on Saturday to share the happy news with fans along with a picture of their newborn's tiny feet alongside their dog's paw. Apart from the pictures ...

Just weeks after losing their Malibu home in the fatal Los Angeles fires, Milo Ventimiglia and his wife, Jarah ... their dog's paw and their new little one's feet. In her post, Mariano expressed ...

Amidst the devastating Los Angeles wildfires, Milo Ventimiglia and his wife Jarah Mariano ... Mariano wrote in the caption, featuring their baby's legs while holding their dog's paw.

The This Is Us star and wife Jarah Mariano have officially become a trio ... Jarah shared a photo of the little one's feet alongside their dog. "Gentle reminder to all, to please allow us ...

The 'This Is Us' star welcomed his first baby with wife Jarah Mariano on Thursday ... half of the newborn and the paw of their dog. In the caption, Mariano reflected on everything that the ...

This Is Us Star Milo Ventimiglia and his wife, Jarah Mariano ... half of the newborn alongside the paw of their dog.In the caption, Mariano looked back on everything that the couple has been ...

Yup! Milo Ventimiglia is a dad! The This Is Us alum - who spent six seasons exploring the trials and tribulations of family - ...