The late actor, who starred as Brian O'Conner in the action film franchise, tragically died at the age of 40 in 2013 after his car crashed into a lamppost and burst into flames.
Diesel paid his respects, opting to simply change his Facebook cover picture to an image of himself and Walker.
While, Gibson, who played Romance Pierce in "2 Fast 2 Furious", hailed him the "nicest" person and asked people to pray for his family.
"Nov 30th we lost an angel! Paul treated everyone with the upmost respect and went out of his way to make everyone feel like they mattered...... I love and I miss you dearly . We simply ask of you prayer warriors around the world pray for his daughter our niece Meadow Walker."
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Ludacris also shared a touching tribute to the late actor, sharing a photo of him , with the message "Always in our hearts."
Brewster also wrote, "Love you forever, miss you forever (sic).