- Felicity Jones Ruth Bader Ginsburg
- Armie Hammer Marty Ginsburg
- Justin Theroux Mel Wulf
- Kathy Bates Dorothy Kenyon
- Sam Waterston Erwin Griswold
- Stephen Root Profesor Brown
- Jack Reynor Jim Bozarth
- Cailee Spaeny Jane Ginsburg
- Ronald Guttman Gerald Gunther
- Chris Mulkey Charles Moritz
- Wendy Crewson Harriet Griswold
- John Ralston Tom Miller