Ryan Reynolds said he cried “tears of joy” after Wrexham secured a second successive promotion, while Rob McElhenney said he has “no words”.
The Hollywood actors, who took over the Welsh football club in 2021, saw their team seal their place in League One next season with a thumping 6-0 win over Forest Green.
Fans poured onto the pitch to celebrate at the end of the game at the Racecourse Ground.
Wrexham were promoted to the Football League at the end of last season following a 15-year absence, with an open top bus parade which saw tens of thousands turn up to mark the achievement.
Deadpool star Reynolds, 47, wrote on X: “A few years ago, if you told me I would be crying tears of joy over a football match taking place in North Wales, you would be Rob McElhenney.
“Congrats to Wrexham and to my co-chairman in crime. Double up the town! This is the ride of our lives.”
McElhenney, 46, who co-created It’s Always Sunny In Philadelphia, said he was watching the game from Los Angeles and wrote on X: “No words.” He also posted a heart emoji.
Fans poured onto the pitch to celebrate.
While watching the match he had praised striker Paul Mullin, 29, who struck twice in the first half to help Wrexham to a 4-0 half-time lead.
“This may be my favourite goal of his. Not a game winner or anything fancy. Just perseverance, hustle and grit,” he wrote.
“@PMullin7 knows the people in that stadium didn’t pay their hard-earned wage to watch guys give 95%. They deserve 100% and he gives it to them All. The. Time.”
McElhenney previously let Mullin recover at his home after he suffered an injury during a US friendly against Manchester United.
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Since taking over the club in February 2021, McElhenney and Reynolds, along with their popular Welcome To Wrexham docuseries, have propelled the club into the global spotlight.
In 2022, the pair were honoured by the Welsh Government, the Football Association of Wales and S4C for promoting the country and its language with the Dragon Award.
Reynolds had a meeting with Prime Minister Rishi Sunak, while the club has seen recent royal visits from the Prince of Wales and the King and Queen.