The core ensemble of Hidden Figures is led by Taraji P. Henson, Octavia Spencer, and Janelle Monáe, supported by Kevin Costner, Kirsten Dunst, Jim Parsons, Mahershala Ali, and Glen Powell, among others. The film centers on three Black women mathematicians at NASA whose work was crucial to the early U.S. space program.

Main cast

  • Taraji P. Henson as Katherine Goble Johnson , a brilliant NASA mathematician who calculates critical flight trajectories. Her character anchors the story’s emotional and scientific stakes.
  • Octavia Spencer as Dorothy Vaughan , a mathematician and supervisor who becomes a pioneer in computer programming at NASA. Her arc highlights leadership and adaptation to emerging IBM computing technology.
  • Janelle Monáe as Mary Jackson , a mathematician who fights to become NASA’s first Black female engineer. Her storyline foregrounds legal and educational barriers in Jim Crow–era Virginia.

Key supporting roles

  • Kevin Costner as Al Harrison , the composite head of the Space Task Group who pushes for results over segregation. His character symbolizes institutional change within NASA.
  • Kirsten Dunst as Vivian Mitchell , a white supervisor representing the era’s entrenched workplace biases. Her gradual shift reflects slow, reluctant progress.
  • Jim Parsons as Paul Stafford , a senior engineer who resists sharing credit and data with Katherine. He embodies professional gatekeeping and elitism in the space program.

Family, astronauts, and NASA figures

  • Mahershala Ali as Jim Johnson , an Army officer who courts and later marries Katherine, giving the film its romantic thread. His evolution from skeptic to supporter mirrors wider shifts in attitudes toward women in STEM.
  • Glen Powell as John Glenn , the celebrated astronaut whose orbital mission depends on Katherine’s calculations. The film dramatizes his explicit trust in her work.
  • Aldis Hodge as Levi Jackson , Mary’s husband, who is wary of institutional racism yet supports her ambitions. Their conversations frame the personal cost of breaking barriers.

Extended ensemble

  • Olek Krupa as Karl Zielinski , a fictionalized version of engineer Kazimierz Czarnecki who urges Mary to pursue engineering. His mentorship role underscores the importance of allies inside rigid systems.
  • Saniyya Sidney and Lidya Jewett as Katherine’s daughters/younger self , showing the generational impact of her work and sacrifice. These characters ground the story in home life beyond NASA’s walls.

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