Name	Known for
Joe Morton Self - Narrator Self - Narrator See fewer	Terminator 2: Judgment Day (1991)
Ruth Gruber Self - Journalist Self - Journalist See fewer	Carry On (2008)
Ken Coates Self - Historian Self - Historian See fewer	You Can Call Me Roger (2022)
Charles Hendricks Self - Military Historian Self - Military Historian See fewer	American Experience (1987)
Heath Twichell Self - Historian Self - Historian See fewer	American Experience (1987)
William Griggs Self - Army Engineer Self - Army Engineer See fewer	Modern Marvels (1993)
Franklin D. Roosevelt Self (archive footage) (as Franklin Delano Roosevelt) Self (archive footage) (as Franklin Delano Roosevelt) See fewer	The President's Mystery (1936)
Billy Connor Self - Civil Engineer Self - Civil Engineer See fewer	Mega Engineering (2009)
Hayward Oubre Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
John Bollin Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
Henry Geyer Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
Fred Mims Self - Quartermaster Corps Self - Quartermaster Corps See fewer	American Experience (1987)
Alden Hacker Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
Bob Trail Self - Canadian Resident Self - Canadian Resident See fewer	American Experience (1987)
Alice Summer Self - Canadian Resident Self - Canadian Resident See fewer	American Experience (1987)
Alvin Schexnider Self - Historian Self - Historian See fewer	American Experience (1987)
Wallace Lytle Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
Bob Batey Self - Army Engineer Self - Army Engineer See fewer	American Experience (1987)
Chester Russell Self - Army Engineer Self - Army Engineer See fewer	Modern Marvels (1993)