“Arthur Phillistine” is Arthur Christiansen

Panel 2: Lord Beaverbrook dressed as the masthead figure of the “Daily Express”
Panel 3: Each of the telephones is a direct line to one of Beaverbrook’s international residences. An adaptation of “Big Brother is Watching You”
Panel 4: The “Express” had indeed said there was no possibility of war only days before WWII.
Panel 5: Christiansen was cast as the editor of the Daily Express in the "The Day the Earth Caught Fire"
Panel 8: The questioning journalist looks like Christopher Booker