The plot features Ronald and the gang out on a journey to Grimace Island where Grimace's species is discovered. Grimace previously received a letter which was actually written by the pirate captain One-Eyed Sally and her first mate Blather. The two pirates follow them to capture the treasure on the island.
Jack Doepke
Ronald McDonald / Ronald McDonald (voice)
Dee Bradley Baker
Sundae (voice)
Verne Troyer
Sundae
Christine Cavanaugh
Birdie (voice)
Charlie Adler
Hamburglar / McNugget #3 (voice)
Kevin Michael Richardson
Grimace / King Gunga (voice)
Alex D. Linz
Franklin (voice)
Pamela Adlon
McNugget #1 (voice)
Lisa Raggio
McNugget #2 (voice)
Billie Hayes
One Eyed Sally (voice)
Bruce Weitz
Blather (voice)
Jim Cummings
Announcer (voice)
The Adventures of Ronald McDonald: McTreasure Island
1990
The Wacky Adventures of Ronald McDonald: Scared Silly
1998
The Wacky Adventures of Ronald McDonald: The Legend of Grimace Island
1999This film
The Wacky Adventures of Ronald McDonald: The Visitors from Outer Space
1999
The Wacky Adventures of Ronald McDonald: Birthday World
2001
The Wacky Adventures of Ronald McDonald: Have Time, Will Travel
2001
The Wacky Adventures of Ronald McDonald: The Monster O' McDonaldland Loch
2003
