Paramedics reportedly applied CPR on Gao for 15 minutes, after which his heart stopped beating for three minutes, before being resuscitated. Here are the details behind his untimely passing.
The 35-year-old was a guest participant on Chase Me, a reality TV show that sees teams competing to win a race.
The news has sparked criticism of Chase Me, with many calling for the series to be cancelled. Most of these challenges involve running through cities when it's dark out.
The Vancouver-raised Gao had been making great strides in his acting and modelling career.
Sina reports that Godfrey was unwell with a cold before taking part but filmed "continuously" for 17 hours- from 8.30am on Tuesday November 26 to 1.45am, before collapsing on set. He had a cold that day. "Unfortunately following three hours of medical rescue efforts, he left us", a spokesperson said in a statement, according to WWD.
His sudden death prompted an outpouring on social media from fellow actors and friends such as Henry Goulding, Harry Shum Jr and Remy Hill.
Godfrey Gao has died at age 35. He was a pioneer in the Asian community that stretched our imaginations on what was possible in the industry.
At this time, it is unclear if production will continue in the wake of Gao's death.
Actor Aarif Rahman posted a tribute to Gao on his Weibo page, saying he did not expect Gao to "leave us so suddenly", adding: "I hope you rest in peace, and I hope your family can get though this grief and pain courageously". Many felt Chase Me challenges are risky.
Godfrey Gao, who is also known as Gao Yixiang, was born in Taiwan to a Taiwanese father and a Malaysian mother.