Character Name : Richard Feynman

Original Name : Matthew Broderick

Gender : Male

Character Name : Arline Greenbaum

Original Name : Patricia Arquette

Gender : Female

Character Name : Mel Feynman

Original Name : Peter Riegert

Gender : Male

Character Name : Young Richard

Original Name : Jeffrey Force

Gender : Male

Character Name : Harold

Original Name : David Drew Gallagher

Gender : Male

Character Name : Robert

Original Name : Raffi Di Blasio

Gender : Male

Character Name : David

Original Name : Josh Keaton

Gender : Male

Character Name : Abacus Adder

Original Name : James Hong

Gender : Male

Character Name : Young Joan

Original Name : Melissa DeLizia

Gender : Female

Character Name : Dr. Gell-Mann

Original Name : Peter Michael Goetz

Gender : Male

Character Name : Nurse Kate

Original Name : Kelly Wolf

Gender : Female

Character Name : County Nurse #2

Original Name : Mary Pat Gleason

Gender : Female

Character Name : Aunt Ruth

Original Name : Joyce Van Patten

Gender : Female

Character Name : John Wheeler

Original Name : James Le Gros

Gender : Male

Character Name : Bill Price

Original Name : Zeljko Ivanek

Gender : Male

Character Name : Calculator Kid #3

Original Name : Joshua Malina

Gender : Male

Character Name : Gate Guard

Original Name : Matt Mulhern

Gender : Male