<Li> Robert Reed as Johnny Lubitch </Li> <Li> Diana Hyland as Mickey Lubitch </Li> <Li> Vernee Watson - Johnson (as Vernee Watson) </Li> <P> The "Bubble Boy" who inspired this film, David Vetter, questioned the film's depiction of how sterile Tod's use of the spacesuit was . Vetter scoffed at the idea that Travolta's character could simply wear the space suit back into the isolator without contaminating the bubble . </P>

Who played in the boy in the plastic bubble