Jeff Hester

Jeff Hester

饰：Self - ASU,(as Professor Jeff Hester)

Jack Lissauer

饰：Self,(as Dr. Jack Lissauer)

Gary Lofgren

饰：Self - NASA

Michelle Thaller

饰：Self - Cal Tech,(as Dr. Michelle Thaller)

Don Pettit

饰：Self - Astronaut,(archive footage)