Affleck, Lawrence and Chastain join an already stellar cast of presenters, including Halle Berry, Sandra Bullock, Nicole Kidman, Reese Witherspoon, Mark Wahlberg and his foul-mouthed cuddly companion, Ted.
The Avengers cast members Robert Downey Jr, Samuel L Jackson, Chris Evans, Jeremy Renner and Mark Ruffalo will also present, as will 2011 Oscar winners Jean Dujardin, Christopher Plummer, Octavia Spencer and Meryl Streep.
On Monday, the Oscar show's producers announced that the stars of Chicago - Richard Gere, Queen Latifah, Renee Zellweger and Catherine Zeta-Jones - will reunite on the 10th anniversary of the film's best picture Oscar win.
Former Harry Potter star Daniel Radcliffe will also present, as well as Channing Tatum, Charlize Theron and Joseph Gordon-Levitt.
The Oscars, the climax of Hollywood's annual awards season, have a musical theme this year, with highlights set to include Britain's Adele singing Oscar-nominated 007 theme tune Skyfall.
Shirley Bassey, Norah Jones and Barbra Streisand also will perform. It will be Streisand's first Academy Awards performance since 1977, when she sang the winning song from A Star Is Born.
- AFP