Sphere
SphereMichael Crichton
Characters in Sphere
7 characters, main characters first.Main characters
Norman Johnson
Psychologist who once wrote the Navy's contact-team procedures and is called in to the habitat; the story's viewpoint.
Supporting characters
Harold Adams
Mathematician on the team, a quiet, brilliant colleague of Norman's.
Elizabeth Halpern
Zoologist and biochemist on the team, sharp, driven and wary of her colleagues.
Theodore Fielding
Astrophysicist on the team, ambitious and quick to see an opportunity.
Harold C. Barnes
Retired Navy captain in charge of the underwater investigation, who keeps back what he knows.
Alice Fletcher
Navy chief petty officer, nicknamed Teeny, who keeps the habitat running.
Minor characters
Arthur Levine
Marine biologist invited on the mission and sent back up because of claustrophobia.