X-Men [Professor X; Cyclops; Phoenix [Jean Grey] (first appearance); Storm; Wolverine; Colossus; Banshee; Nightcrawler [Groucho Marx; Clark Gable; Fred Astaire]]; Moira MacTaggert; Peter Corbeau; Black Tom Cassidy (villain, first full appearance); Juggernaut (villain)
Synopsis
The X-Men's shuttle crash lands in Jamaica Bay and Jean rises from the wreckage as the Phoenix. To facilitate Jean's recovery, Professor X sends all of the X-Men but Cyclops to Scotland on vacation where Banshee has just inherited his ancestral castle. The X-Men show up at the castle and find it already inhabited by Sean's cousin Tom and his pal Juggernaut.