British actor Riz Ahmed has urged people to "make your voices heard" following Donald Trump's controversial travel ban, as he arrived at the Screen Actors Guild (SAG) Awards.
The Rogue One star is nominated for best actor in a limited TV series for his role in HBO crime drama The Night Of.
Ahmed, whose parents moved to the UK from Pakistan, said he knew people affected by the US president's decision to ban nationals from seven Muslim-majority countries.
Speaking to the SAG Awards' official live stream, he said: "Now is not a time for escapism.
"If people care about the future of this country and the world ... it's time to make your voices heard."
Ahmed, 34, also said he had launched a campaign to help young Syrian refugees.
Millie Bobby Brown arrived on the red carpet for her bid to become the youngest ever winner at the ceremony.
The 12-year-old is nominated for best actress in a drama series for her role as a girl with psychokinetic abilities in Netflix show Stranger Things.
She will compete for the award with fellow Britons Claire Foy and Thandie Newton, her Stranger Things co-star Winona Ryder and Robin Wright from House Of Cards.
Golden Globe winner Foy is nominated for her portrayal of the Queen in Netflix drama The Crown, while Newton has been recognised for her performance as a life-like robot in HBO show Westworld.
Two SAG awards were announced before the ceremony
Game Of Thrones won outstanding action performance by a stunt ensemble in a comedy or drama series.
Meanwhile, Mel Gibson's Second World War drama Hacksaw Ridge won outstanding action performance by a stunt ensemble in a motion picture.