Character Relationship Map: Man from Atlantis

Characters

• Mark Harris (played by Patrick Duffy) — protagonist

  Water-breathing Atlantean survivor adapting to surface life and fighting alien threats.

• Dr. Elizabeth Merrill (played by Belinda Montgomery) — supporting

  Dedicated marine biologist and Mark's primary ally and romantic interest.

• Cmdr. Phil Roth (played by Lawrence Pressman) — supporting

  U.S. Navy commander overseeing Mark's operations and providing military support.

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Mark Harris → Dr. Elizabeth Merrill (romantic)

  Primary romantic partners and allies across all titles

• Mark Harris → Cmdr. Phil Roth (professional)

  Naval commander providing military support and oversight