Ed Davidson is a seasoned mariner with over 25 years of experience operating boats in the Florida Keys. His extensive maritime career spans various sectors including sport fishing charters, headboat fishing operations, commercial fishing, and diving and snorkeling charters. Davidson's deep connection with the marine environment is not only professional but also academic. He holds a science degree and has conducted population studies on commercially valuable species. Over the years, Davidson has been an eyewitness to the steady decline in water quality and clarity in the Florida Keys.

Charles Mills is a long-time resident of the Florida Keys, with a deep understanding of the local environment and the changes it has undergone over the years. His knowledge extends to the intricacies of the local water systems, including the impact of septic tanks and drain fields on the water quality. Mills is a strong advocate for responsible septic tank maintenance, arguing that regular cleaning can prevent system failures and potential contamination of the surrounding waterways.

Narrator Pete Worthington, of Marathon, Florida, was a commercial fisher at the time of the interview.

Billy Deans, a long-time resident of the Florida Keys, has been living in the area since December 1968. He moved to the region when he was in the ninth grade. Deans has always been drawn to the water, a fascination that began when he first crossed the Seven Mile Bridge and was captivated by the clarity of the water. He initially lived on Stock Island from 1968 to 1980, after which he moved to Sugarloaf, where he has resided since. Deans is a University of Florida graduate with a degree in Chemistry.

Narrator Robert Nathan, of Arlington, Virginia was an economist and recreational fisher at the time of the interview.  He has been fishing the Florida Keys since 1937.
 

Narrator Karl Lessard, of Marathon, Florida, was a commercial fisherman at the time of the interview.

Don DeMaria is a long-time resident of the Florida Keys, having moved there permanently in 1977, although he had been visiting the area since 1965. He initially lived in Key West before moving to Summerland around 1984. DeMaria is a college graduate and has been a commercial fisherman since 1972. His fishing experience extends to various locations, including Tortugas, Boca Grande, and Marquesas, with his work in Tortugas beginning when he moved to the Keys permanently. DeMaria's fishing methods include spearfishing and catching tropical fish.

Glenn Evans and Mark Nease are two divers/boat captains with extensive experience and knowledge about the marine ecosystem of the Florida Keys. Glenn Evans, a seasoned marine biologist, has spent a significant portion of his career studying the changes in the marine ecosystem, with a particular focus on water conditions such as clarity, algae blooms, and visibility. His work has contributed significantly to the understanding of the impact of environmental changes on marine life.

Narrator Ken Nedimeyer, of Tavernier, Florida, was a commercial fisher/diver at the time of the interview.

Narrator Peter Gladding of Key West, Florida was a commercial fisherman at the time of the interview.