Paul Walker would have turned 43 on Monday.
The late actor's co-stars in the "Fast and Furious" films marked the bittersweet occasion with social media tributes to the beloved action hero, who died nearly three years ago in a terrible car accident.
Vin Diesel, the actor's close friend and co-star in five of the "Furious" flicks, took to Instagram to share a collage of photos featuring Walker and himself.
"Happy Birthday, Pablo," Diesel wrote, using his affectionate nickname for his friend.
Diesel, who named his 18-month-old daughter Pauline in honor of Walker, has been candid about how painful Walker's death has been for both him and his son, Vincent, 5.
Cody Walker, the late actor's lookalike younger brother, tweeted a throwback birthday pic in honor of "the man that influenced my life and who I am."
Both Cody, 28, and his brother Caleb Walker, 38, stepped in during filming of "Furious 7" to help complete their older brother's scenes.
Jordana Brewster, who played Walker's on-screen girlfriend in the franchise, shared a candid photo of the stars sitting together. "I will love you, always," wrote the actress.
Tyrese Gibson shared an Instagram photo of the late actor, and poured his heart out in its caption, calling Walker "an angel."
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"What's so amazing and how much he affected us all and was only on earth physically for 40 years," wrote Gibson.
"The love we all have for Paul just solidifies one thing," the actor wrote. "No one could ever really die as long as he stays alive in your hearts and always on your mind."