PLAYED BY: Michael Corbett
SPECIES: Hekaran Male

Hekaran physicist who concurred with his sister, Serova, that warp drive travel was damaging to the fabric of space. In 2370, Serova's theories were presented to Federation representatives.
 

PLAYED BY: Margaret Reed
SPECIES: Hekaran Female

Female Hekaran scientist who discovered that warp-drive ships were slowly destroying the fabric of space in the Hekaras Corridor. She died in 2370 while trying to demonstrate her theories.
 

PLAYED BY: Lee Arenberg
SPECIES: Ferengi Male

Ferengi commander of a Ferengi transport vessel, Prak was stranded in the Hekaras Corridor in 2370. He was given assistance to fix his ship by Captain Picard's crew. This resulted in the Ferengi sharing his sensor log information to help in the investigation for the missing Federation ship U.S.S. Fleming.