DPS received some E-mail answering one of those close-to-unanswerable questions:
Subject: Helmut Dantine This actor played the gambling young husband to Joy Page in Casablanca...he died in 1982 of a massive coronary. Joy Page was still alive when the source book was printed in 1992. She has been a recluse for years. Her son furnished the info for Aljean Harmetz, the author of the source book. Source: Round Up The Usual Suspects....The Making Of Casablanca---Bogart, Bergman, and World War II.