British actor Idris Elba won two awards at the SAG awards, held over the weekend.
The awards were for his roles in the detective drama Luther, and for his supporting role as the African warlord in Beasts of No Nation.
While presenting an award, Idris stated "Ladies and gentlemen, welcome to diverse TV,"
The female prison series Orange is the New Black won the ensemble award for a comedy series, and its star Uzo Aduba for best comedy actress in a television series.
The series has earned praise for its diverse cast and willingness to address race issues. Accepting the cast award, actress Laura Prepon referred to her cast mates, saying: "This is what we talk about when we talk about diversity."
The three main acting awards were given to films with mainly white casts, Spotlight, The Revenant and Room, all of which are among the Oscar favourites.
The absence of any non-whites in the four Oscar acting categories for the second year running has prompted discussion on diversity in Hollywood.Since then, the organisation behind the awards has promised to double the number of female and minority members, a move welcomed by leading actors.
However, director Spike Lee, actress Jada Pinkett Smith and her husband Will Smith announced they would not be attending next month's awards.
The other main winners of the SAG awards include Brie Larson (Room) for Best film actress, Leonardo DiCaprio (The Revenant) for Best film actor and Queen Latifah (Bessie) for Outstanding performance by an actress in a TV miniseries or movie
The rest are Kevin Spacey (House of Cards), Viola Davis (How to Get Away With Murder), Downton Abbey for Best actor in a television drama series, Best actress in a television drama series and Best television drama ensemble respectively.