Actor Jason Momoa spoke before the UN on September 28, where he warned the world’s “oceans are in a state of emergency”.
Sherlock actor Benedict Cumberbatch joined Extinction Rebellion activists this week in London’s Trafalgar Square, in a show of solidarity.
Even religious figures, such as the former Archbishop of Canterbury Dr Rowan Williams, prayed with climate activists outside London’s St Paul’s cathedral in April this year.
Mr Redmond-King said: “Anybody lending their voice to the call for action is hugely to be welcomed and celebrities have a louder voice than I do, they get to reach more people than I do. It’s great when that happens.”