Zac Manchester

Self - Engineer

Sudan Paramesvaran

Self - Researcher

Albert Einstein

Self (archive footage)

Stephen Hawking

Self (archive footage)

Sylvester James Gates

Self - Physicist

David Kaiser

Self - Physicist

Sean Carroll

Self - Physicist

Brian Greene

Self - Physicist

Janna Levin

Self - Professor of Physics and Astronomy

Hakeem Muata Oluseyi

Self - Astrophysicist

Robbert Dijkgraaf

Self - Physicist

Jocelyn Bell Burnell

Self - Astrophysicist