Secrets of Atlantis

Secrets of Atlantis is an American animated adventure fantasy comedy television series created by TBD, being produced by Warner Bros. Animation and aired on Kids' WB from September 9th, 2000 until May 28th, 2005.

Synopsis
After an incident that causes him to get lost in the ocean, a man has been rescued and taken to the city of Atlantis, as he starts to discover some secrets behind the city.

Main

 * Jason Davidson (voiced by Frank Welker) - a curious man who was once a sailor until the incident and later got taken to the city of Atlantis, where he began exploring it.
 * Cassandra (voiced by Cathy Cavadini) - a sweet and ditzy mermaid who rescued Jason as she often assists him.
 * Sheldon (voiced by Phil LaMarr) - an intelligent, yet easily annoyed talking sea turtle who is Cassandra's pet, as he is often the voice of reason.

Supporting

 * King Aquarius (voiced by Mark Hamill) - the wise king of Atlantis who is both extremely powerful and protective.
 * Derek "The Ocean Man" (voiced by TBD) - a comedic and mischievous large African-American merman who claims himself to be the best in the entire ocean, as he also has an army of large fish with him.
 * Melvin (vocal effects by TBD) - a cheerful manatee who Jason and Cassandra befriended.
 * Dylan Darby (voiced by Corey Padnos) - a curious little boy who has the ability to turn into a merboy as he ends up saving other mermaids' lives, as well as the other sea creatures.
 * Kelpbucket (vocal effects by Tara Strong) - a playful seahorse who is Dylan's pet as he often goes out on adventures with him.
 * Kelpbucket (vocal effects by Tara Strong) - a playful seahorse who is Dylan's pet as he often goes out on adventures with him.

Antagonists

 * Councilman Slorr (voiced by Jeffrey Combs) - an Atlantean councilor who is trying to manipulate Aquarius into giving him power over Atlantis.
 * Valeria (voiced by TBD) - a snobby mermaid who is Cassandra's rival since they were younger and often brags about how she is prettier than the rest off the mermaids, including Cassandra.
 * The Shark (vocal effects by TBD) - a Shark that has been terrorizing Atlantis.
 * The Apex (voiced by TBD) - a powerful Atlantean AI designed to keep Atlantis safe who ends up being hijacked and turned evil.
 * The Trench Monster (vocal effects by TBD) - a scary giant crab monster who lurks inside of a trench and stays in the dark to wait for its prey.
 * The Vampire (voiced by TBD) - a mysterious Atlantean vampire who has been biting merpeople and turning them into vampires.
 * Aquarachnid (vocal effects by Frank Welker) - a creepy, large tarantula-scorpion hybrid creature who roams around the deepest parts of the ocean as it will eat any living thing it sees.
 * Aquarachnid (vocal effects by Frank Welker) - a creepy, large tarantula-scorpion hybrid creature who roams around the deepest parts of the ocean as it will eat any living thing it sees.

Episodes
See List of Secrets of Atlantis episodes.

Spin-off
See Aquatic Adventures of Dylan Darby.

Tropes
See Secrets of Atlantis/Tropes.