1977 · Marc Daniels · 97 min
A human scientist capable of living underwater discovers similar alien life inhabiting human bodies, and looks to them for a clue to his origin.
Patrick DuffyMark Harris
Belinda MontgomeryDr. Elizabeth Merrill
Kenneth TigarDr. Miller Simon
Alan FudgeC.W. Crawford
Tiffany BollingLioa / Dilly
Annette CharlesGinny Mendoza
Burr DeBenningXos / Chazz
Stanley Bennett ClayBoyAlan MandellGrant StockwoodHank StohlSub Captain Wes
Russell ArmsMedical ExaminerArch ArchambaultSecond OfficerMichael J. LondonAir Lock ManVince Deadrick Sr.Herb WaylandMaurice HillLou