The 15th Annual Screen Actors Guild Awards, honoring the best achievements in film and television performances for the year 2008, were presented on January 25, 2009. The ceremony was held at the Shrine Exposition Center in Los Angeles, California for the thirteenth consecutive year. It was broadcast live simultaneously by TNT and TBS. The nominees were announced on December 18, 2008, by Angela Bassett and Eric McCormack at Los Angeles' Pacific Design Center's Silver Screen Theater. Doubt received the highest number of nominations among the film categories with five, four for individual performances and one for ensemble performance. In the television categories, Boston Legal, 30 Rock, John Adams, Mad Men and The Closer had the most nominations with three each. The biggest winner of the evening was 30 Rock, which won in all three categories in which it was nominated. The Dark Knight won the most film awards, winning in both categories in which it was nominated.

Winners and nominees

Winners are listed first and highlighted in boldface.

Screen Actors Guild Life Achievement Award

Film

Television

In Memoriam

Susan Sarandon introduced a previously recorded "In Memoriam" segment which pay tribute to the actors who died last year: