Although listed as normal for that point of the series in the opening credits, Ward Bond does not appear in this episode and therefore did not have a reunion with guest star Peter Lorre, with whom he had worked in The Maltese Falcon (1941) as well as two entries in Lorre's "Mr. Moto" series of films.
Wagon Train Tracker: Flint McCullough is on a long scout in this episode, and the train is not shown. The Portlass party goes to Coyote Canyon, near Moab in eastern Utah, some distance from the California Trail.