布赖恩·格林

Brian Greene

饰：自己

Christopher Berger

Alex Filippenko

饰：Self

Peter Higgs

饰：Self

Clifford V. Johnson

饰：(as Clifford Johnson)

Rocky Kolb

饰：Self

Janna Levin

饰：Self

Erik Parillo

Saul Perlmutter

饰：Self

Steven Rishard

Steven Rishard

杰伊·桑德斯

Jay O. Sanders

饰：Self - Narrator

Ken Driesslein

Frederic Heringes

Frederic Heringes

Craig Hogan

饰：Self

Glenn Kalison

Glenn Kalison

克里斯·勒德

Chris Lerude