Dennis Quaid & Kimberly’s Park Pal

He’s getting so big!

The Day After Tomorrow star Dennis Quaid and wife Kimberly were spotted with their adorable son Thomas, 3 next month, at a park in Santa Monica on Thursday (September 30).

Thomas’ twin sister Zoe was not spotted with the group.

Thomas and Zoe received an accidental overdose of Heparin 10 days after their birth in November 2007. The 56-year-old father of three is convinced that a “higher power” is responsible for their survival.

A lot of people told us later that they were praying for our babies,” explains the proud dad. “In the end, I believe that the power of prayer from so many is what saved them. It’s obvious to me that a higher power in the universe is controlling what’s going on.”

Dennis and ex-wife Meg Ryan are parents to 18-year-old son Jack.

Celeb Baby Gear: Get the Look!

Tiffani Thiessen Talks Motherhood