Marjolein Caecilia Algera (born Leiden, November 25, 1965) is a Dutch actress and voice actress who provides voices for the Dutch narration of Thomas & Friends.
She is best known for voicing Irwin from "The Grim Adventures of Billy and Mandy", Marlene from "The Penguins of Madagascar", Bart Simpson from "The Simpsons Movie", various characters from "Bob the Builder", Rosita from "Sesame Street", and Laa-Laa from "Teletubbies".
It is possible that she also voices Rosie.
- Both she and Angela Quast voice Rosita from "Sesame Street" in their respective languages.
- Both she and Ewa Serwa, who also voices Clarabel, voice Lin Beifong from "The Legend of Korra" in their respective languages.
- Both she and Mireya Mendoza voice Marlene from "The Penguins of Madagascar" in their respective languages.
- Both she and Hadar Shachaf Ma'ayan voiced Bart in "The Simpsons Movie" in their respective languages.
- Radovan Vaculík, Ringo Starr, Carlos Enrique Bonilla, Jorge Ornelas, Enzo Avolio, Víctor Delgado, Bohuslav Kalva, Daiki Nakamura, Aku Laitinen, Jukka Voutilaninen, Shinobu Adachi, Pasi Ruohonen, Loretta Santini, Olga Hnidey, Don Nemitz, Bin Shimada, Reinder van der Naalt, Ángel Amorós, Gerardo Reyero, Luis Alfonso Padilla, Octavio Rojas, Louise Raeder, Humberto Vélez, Chie Kōjiro, Samuel Harjanne, Keiko Toda, Pierce Brosnan, George Carlin, Alec Baldwin and Nicolás Frías also worked on the TV Series.
- Both she and Sivan Shavit voiced Laa-Laa from "Teletubbies" in their respective languages.
- She, Marc Seal, Laura Beaumont, Paul Larson, Helen Farrall, Lee Pressman, Simon Nicholson, Sharon Miller, Sam Barlow, Ross Hastings, Polly Churchill, James Mason, Rob Rackstraw, Rupert Degas, David Menkin, Lucy Montgomery, Gadi Levy, Dan Shatzberg, Holger Potzern, Simona Pahl, Steven Elford, Achim Schülke, Tobias Diakow, Jens Wendland, Ernesto Lezama, Øyvind Borgemoen Lyse, Fabian Harloff, Dave Ingham, José Gilberto Vilchis, Nigel Chilvers, Lenora Hume, Miranda Larson, Stan Limburg, Lutz Harder, Francisco Colmenero, Steven Kynman, Knud Riepen, Eberhard Haar, Robert Kotulla, Ricardo Silva, Louise Kramskoy, Erik Schäffler, Douglas Welbat, Carlos Enrique Bonilla, Katja Brügger, Christian Rudolf, Jürgen Holdorf, Holger Mahlich, Robert Missler and TUGS voice actor Ian James Corlett have all worked on "Bob the Builder".