The awards will take place this Saturday in Santa Monica.
Also added to the starry line-up are Jessica Biel, Idris Elba, Jason Bateman and Anthony Mackie, reported E! Online.
Previously announced presenters include Jessica Chastain, Rami Malek, Michael Keaton, Aaron Paul, Nate Parker, Emilia Clarke and Patricia Arquette.
"Carol" goes into the show with the most nominations, a total of six, including competing for best feature against "Spotlight", "Beasts of No Nation", "Anomalisa" and "Tangerine".
The Independent Spirit Awards will be hosted by Saturday Night Live's Kate McKinnon and Kumail Nanjiani of Silicon Valley.