Richard Feynman
Self (archive footage)
Joan Feynman
Self - Sister
Freeman Dyson
Self (archive footage)
Sean Carroll
Self - Theoretical Physicist, CALTECH
Leonard Mlodinow
Self - Author of 'Feynman's Rainbow'
Michelle Feynman
Self - Daughter
Richard Davies
Self - Physicist and friend
Marcus Chown
Self - Author and former Feynman student
Jirayr Zorthian
Self - Artist and friend
Danny Hillis
Self - Computer designer and friend
Albert Hibbs
Self - Mathematician and friend (archive footage)
Donald Kutyna
Self - General, US Airforce 1957-1992
Larry Mulloy
Self - NASA (archive footage)
Daniela Nardini
Narrator (voice)
