Connor Paolo

Louis Slotin

Greg Furman

Raemer Schreiber

Drew Waters

Leslie Groves

Coby Larinde

Marion Edward Cieslicki

Tara Alexandra Brown

Nurse Anna

Matt Linton

Theodore Perlman

Manny Spero

Haroutune Krikor Daghlian Jr.

Sam Jacobs

Philip Morrison

Henry Hetz

Samuel Allan Kline