Hogan helps beautiful underground contact Heidi Eberhadt (Marj Dusay) escape to London. But after successfully completing this mission, Hogan receives word that Heidi might be a double agent. Character actor Ned Glass is seen as the owner of the delicatessen used by Hogan as a drop point, while frequent Hogan's Heroes supporting player Milton Selzer is cast as Otto von Krubner. First telecast on November 23, 1968, "Guess Who Came to Dinner" was written by Arthur Julian. ~ Hal Erickson, Rovi