Mark Hamill Talks Star Wars: The Force Awakens on the Schmoes Know's Podcast. - Star Wars News Net

It can't be cheap: Mark Hamill Fed Up Of De-Aging CGI, Wants 'Age-Appropriate' Actor To Replace Luke Skywalker - FandomWire

James Arnold, The Kingsman Directory

How did Harry know about the double agent in Kingsman: The Golden Circle? - Quora

Bond-like 'Kingsman' excels as stylish spy thriller – Boston Herald

In Kingsman: The Secret Service the graphic novel, Mark Hamill is featured as a kidnapped celebrity, in the movie, Mark Hamill himself plays a character named Professor Arnold. : r/MovieDetails

Kingsman: The Secret Service [Blu-ray+Digital Copy+UltraViolet]

putin Archives - Bounding Into Comics

Fan Casting Mark Hamill as H.E.R.B.I.E in Fantastic 4 on myCast

Mark Hamill, DC Movies Wiki

The Secret Service: Kingsman by Mark Millar