"Happy birthday to the loveliest soul I'll ever know," Meadow captioned the black-and-white image from back in the day, which shows the late movie star offering a big grin while wrapping his arm around his only child.

Meadow, whom Paul shared with the actor's ex, Rebecca Soteros, isn't the only one taking a moment to honor the action star six years after his tragic death at 40 in a car accident in Santa Clarita, California.

The franchise's producer and star, Vin Diesel , shared a lengthy post, which is in fact an open letter to his late friend.

We threw a party for the crew last night in appreciation for all of their hard work," he wrote of the upcoming sequel alongside an image of him and Paul.

"PS I ran into your angel Meadow she was in town to visit Vin, Paloma and the kids and my mind was blown from how tall, beautiful how strong she is- and has been....

Ludacris and Jordana Brewster also took the time to share photos of Walker and reflect on their close friendships with the actor.