[1] The cast for series one included Drew Jarvis, Beau Walker, Jacqueline Duncan and Kendal Nagorcka, with Libby Campbell joining the cast from series two onwards, portraying characters Curio, Nitro, Eco, Picasso and Willow respectively.
Throughout each episode, viewer questions, queries, dares and challenges are answered in an entertaining and educational manner along with intersecting storylines.
After Picasso left the show, a search for a Shakster competition was launched in which they cast Libby Campbell as Willow.
On 26 May 2010, The Shak was announced as having breached the children's television standards for endorsing a product by 'The Australian Communications and Media Authority'.
The claim was made when Kendal, Drew and Beau were seen riding scooters with close up scenes during a prize segment.