Janna Levin as Self - Presenter

Neil deGrasse Tyson as Self

Andrea Ghez as Self

Priyamvada Natarajan as Self

Peter Galison as Self

Marcia Bartusiak as Self

Eilat Glikman as Self

Nia Imara as Self

Rainer Weiss as Self

Paul Murdin as Self

Kip Thorne as Self

Mark J. Reid as Self

Feryal Özel as Self

Tod R. Lauer as Self

Sheperd Doeleman as Self

James Guillochon as Self

Dale Kocevski as Self

Chung-Pei Ma as Self

Elizabeth McGrath as Self

Frederick Raab as Self

Robert Schofield as Self

Jessie Jolles as Self - Gravity Café Server