Rusty as Ed Voiced By Matt Hill.
Thomas as Edd Voiced By Samuel Vincent.
Duncan as Eddy Voiced By Tony Sampson,
Michael J. Fox as Rayman as Milo James Thatch: Milo James Thatch is the main protagonist in the films Atlantis: The Lost Empire and Atlantis: Milo's Return. He is voiced by Michael J. Fox in the first film and by James Arnold Taylor in the sequel.
Cree Summer as Haruka as Princess Kidagakash "Kida" Nedakh: Princess Kidagakash, better known as Kida, is one of the main characters in the films Atlantis: The Lost Empire and Atlantis 2: Milo's Return. She is voiced by Cree Summer in both films and by Natalie Strom when shown as a child.
James Garner as Razorbeard as Commander Lyle Tiberius Rourke, a mercenary and the leader of the Atlantis expedition and the main antagonist of the film. He privately seeks the Heart of Atlantis, believing that its power will gain him incredible financial wealth.
Corey Burton as Toad from SMBZ as Gaetan "Mole" Moliére, a French geologist.
Don Novello as Globox as Vincenzo "Vinny" Santorini, an Italian demolition expert.
Phil Morris as Murfy as Doctor Joshua Strongbear Sweet
Claudia Christian as Peach Helga Katrina Sinclair
Jacqueline Obradors as May as Audrey Rocio Ramirez
Leonard Nimoy as King Kashekim Nedakh
John Mahoney as Polokus Preston B. Whitmore
Florence Stanley as Wilhelmina Bertha Packard
Jim Varney as Ash as Jebidiah Allerdyce "Cookie" Farnsworth
David Ogden Stiers as Dognapper as Fenton Q. Harcourt
Norville Shaggy Rogers as Kirby
Luigi and Daisy as Tuff and Tiff
Alcor and Phoenix as Timon and Pumbaa Voiced By Nathan Lane and Ernie Sabella