Plot: The Octonauts are exploring Antarctica, when Shellington discovers strange microscopic creatures living under the ice.
Cast
Keith WickhamKeith Wickham was 50 in Octonauts - Season 4 - Octonauts and the Hidden Lake (Episode 2).
Birthday: Tue, Feb 09 1965
Simon GreenallSimon Greenall was 57 in Octonauts - Season 4 - Octonauts and the Hidden Lake (Episode 2).
Birthday: Fri, Jan 03 1958
Jo WyattJo Wyatt was 44 in Octonauts - Season 4 - Octonauts and the Hidden Lake (Episode 2).
Birthday: Mon, Sep 28 1970
Rob RackstrawRob Rackstraw was 49 in Octonauts - Season 4 - Octonauts and the Hidden Lake (Episode 2).
Birthday: Sun, Oct 31 1965