Greg Oliver
Background
Greg Oliver works for his uncle Earl Sullivan at Sullivans De Luxe Fishing Tours out of Mahu Harbor in Honolulu, Hawaii.
During the events of Up from the Depths (1979) played by Sam Bottoms
Greg overhears Louellen Bennett tell Ed Bennett, when she gets into a mood, she just has to buy something and Greg motions to a wood craft salesman who puts out a large wooden statue of a god with a sign that says not for sale. Louellen and Ed walk up to the shop and when Ed asks why the one piece isn't for sale, the salesman tells him it is real. Ed offers him a hundred dollars and Greg walks up to him and pulls him aside and tells him not to offer more than fifty dollars for it. After buying the carving, Ed walks up to Greg and thanks him and when he finds out he lives on a fishing boat, he and Louellen go to see it. Rachel McNamara arrives at the marina and Greg tells her Sandra Kane drowned and she asks him if he has been dropping bait in front of the hotel she works at. She tells him he and Earl are banned from the hotel for good by Oscar Forbes. At the hotel, Earl and Greg are having a meeting with Ed, Louellen and Holland. Oscar walks up to them and tells them Earl and Greg are swindlers and orders Earl and Greg thrown out of the hotel. Greg is seeding an area of the ocean with cheap junk ahead of Ed and Holland's planned search for treasure. Greg and Holland dive into the water while Ed and Earl stay on the boat with Roger. Holland finds the coins and other junk that Greg seeded the area with earlier. While Holland is reaching for a sword, he is attacked by the Monster Fish and eaten. Greg swims back onto the boat and tells Earl, Holland is dead. Earl tells Greg not to tell anyone as they are about to dock. David Whiting walks up to Rachel and Greg and asks them to describe what they saw and then tells Rachel he will come and see her later. Harry tells Rachel he found a human arm and Greg asks him to show him where he found it. Greg, Rachel, and Harry get onto a glass bottom boat and leave to hunt the Monster Fish. Greg, Rachel and Harry are at the location where Harry found the arm when they are attacked by the Monster Fish which smashes their boat. David and Nieberg arrive in their boat and save Greg and Rachel by pulling them onto their boat. Greg, Nieberg, Rachel and David head towards the bay and tell everyone to get out of the water. Nieberg falls into the water when the Monster Fish attacks the floating dock he and Greg are standing on and Nieberg is eaten by the Monster Fish. Greg gets onto David's boat with Rachel to help catch the Monster Fish alive. David shows Rachel and Greg the tranquilizer gun he has. Earl chastises Greg for leaving him to help Rachel, but Greg jumps into the water with David. David is attacked by the Monster Fish and Greg drags him onto the boat, but he dies. Greg ties plastic charges around the body of David and then throw it into the water. They then tie the body to a line and drag it as they drive the boat. The Monster Fish takes David's body as bait and disconnects the line and Greg has to go back into the water to try and reconnect it with David's helper. David's helper is killed, but Greg manages to connect the line and blow the charge, killing the Monster Fish. Rachel jumps into the water and she and Greg kiss.
