Joe Morton
Narrator (voice)
Acting
Ruth Gruber
Self - Journalist
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Charles Hendricks
Self - Military Historian
Acting
Heath Twichell
Self - Historian
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William Griggs
Self - Army Engineer
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Billy Connor
Self - Civil Engineer
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Hayward Oubre
Self - Army Engineer
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John Bollin
Self - Army Engineer
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Henry Geyer
Self - Army Engineer
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Fred Mims
Self - Quartermaster Corps
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Alden Hacker
Self - Army Engineer
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Bob Trail
Self - Canadian Resident
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Alice Summer
Self - Canadian Resident
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Alvin Schexnider
Self - Historian
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Wallace Lytle
Self - Army Engineer
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Bob Batey
Self - Army Engineer
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Chester Russell
Self - Army Engineer
Acting