Steven Soderbergh Director, Screenwriter, Cinematographer, Film Editing George Clooney Chris Kelvin Actor Natascha McElhone Rheya Actor Jeremy Davies Snow Actor Viola Davis Gordon Actor Ulrich Tukur Gibarian Actor John Cho Suited Professional #1 Actor Morgan Rusler Suited Professional #2 Actor Shane Skelton Young Boy, Gibrarian's Son Actor Donna Kimball Mrs. Gibarian Actor Michael Ensign Friend #1 Actor Elpidia Carrillo Friend #2 Actor Kent Faulcon Patient #1 Actor Lauren Cohn Patient #2 Actor Stanislaw Lem Writer John Cameron Producer Rae Sanchini Producer Jon Landau Producer Gregory Jacobs Executive Producer, First Assistant Director Philip Messina Production Design Milena Canonero Costume Design Michael Polaire Co-Producer, Unit Production Manager Charles V. Bender Co-Producer Cliff Martinez Original Music Steve Arnold Art Director Keith P. Cunningham Art Director Kristen Toscano Messina Set Decoration Debra Zane Casting