Ryan Reynolds and Blake Lively unveil their fourth child's name: Olin.

At the "Deadpool & Wolverine" premiere, Reynolds praised his family’s support.

He joked about Taylor Swift not revealing their baby’s name, adding humor.

Their home is described as a "zoo" with four kids now.

Reynolds says they wouldn't have had four children if they didn’t love it.

Fans first guessed about the new baby after Lively’s Super Bowl post.

Reynolds, the youngest of four boys, jokes about chaotic childhood and family dynamics.

The couple’s big family tradition continues with their growing household.

Reynolds, previously married to Scarlett Johansson, has been happily married to Lively since 2012.