6.4·1977–1978·1 Season·English

Canceled

Sci-Fi & FantasyDramaAction & Adventure

Synopsis

Atlantis survivor Mark Harris breathes underwater, withstands extreme depth pressures and wields superhuman strength.

Created by

Mayo Simon

Main Cast

Patrick Duffy

Mark Harris

Belinda Montgomery

Dr. Elizabeth Merrill

Alan Fudge

Dr. Crawford

Seasons · 2

Specials

Season 1

More Like This

seaQuest DSV

Alphas

Voyage to the Bottom of the Sea

The Invaders

Justice League

Psi Factor: Chronicles of the Paranormal

Battlestar Galactica

Dark Skies

Stargate Atlantis

The 4400

Doctor Who

Beyond