The actor opened the show in Los Angeles by calling himself a "citizen of the world" and sternly took aim at U.S. leader Donald Trump's ban on Muslims entering America.

Signing an executive order on Friday (27Jan17), Trump ruled that travellers from seven countries, including Iraq and Iran, would not be allowed to enter America.

His decision caused chaos at airports as many travellers were refused access to flights, while activists in the U.S. protested at airports in Los Angeles and New York.

Kutcher added, "Good evening fellow SAG-AFTRA members and everyone at home and everyone at airports that belong in my America. You are a part of the fabric of who we are and we love you and we welcome you."

Before arriving at the SAG Awards, Kutcher slammed President Trump's refugee ban on Twitter, pointing out that his wife, actress Mila Kunis, emigrated from her native Ukraine to the United States in the early 1990s.

"My wife came to this country on a refugee visa in the middle of the Cold War! My blood is boiling right now!" he wrote.

Kunis was born in Chernivtsi and grew up in Russia before arriving in America with her family in 1991, when she was seven.