Magdalena is friends with Henry the Octopus. In Wiggle Bay, Henry introduces The Wiggles to Magdalena the Mermaid and Captain Feathersword has a dance with her. Later, she throws The Wiggles their ball back and they thank her and as they continue to play ball, she disappears in the waves.
The Wiggles talk with Magdalena and she remarks it’s the key to Davy Jones’ Locker. Captain Feathersword leaves with Magdalena to return the key to King Neptune. Captain Feathersword and Magdalena return with good news. King Neptune has found the boat and they have it now. King Neptune calls in to say thanks for getting the key back.
In Racing To The Rainbow, she has a song about her, titled The Princess of the Sea.
|Current Main Characters||Emma Wiggle - Simon Wiggle - Lachy Wiggle - Anthony Wiggle - Captain Feathersword|
|Former Main Characters||Greg Wiggle - Murray Wiggle - Jeff Wiggle - Sam Wiggle - Phillip Wiggle|
|Minor Characters||Officer Beaples - The Wagettes - The Wiggly Dancers - Hot-Pots The Oven - Foodman - Paul the Cook - Flora Door - The Little Wiggles - Magdalena the Mermaid - Professor Singalottasonga - Santa Claus - Ringo the Ringmaster - Wally the Great|
|Guest Stars||Lee Hawkins - Steve Irwin - Kylie Minogue - Al Roker - Leo Sayer - Robert Rakete - Ross Wilson - Alfonso Rinaldi - Daryl Somers|