When Anakin is being treated aboard the Consular-class frigate, his ventilator has the same sound of the breathing of his future Darth Vader suit.
George Lucas decided that all aliens belonging to the Twi'Lek race (such as Aayla Secura) should speak with a French accent.
The Lurmen villagers are based on unused 'lemur people' design concepts who were originally to inhabit the planet Mygeeto in Star Wars: Episode III - Revenge of the Sith (2005). Their way of moving by rolling over the ground is based on the way the Amanin transport themselves in the Dark Horse Star Wars comic book story arc 'To the Last Man' (Star Wars Empire # 16-18)
The design of the planet Maridun is based on Ralph McQuarrie concepts for a grassland planet named Sicemon that was featured in an early draft of Star Wars: Episode VI - Return of the Jedi (1983).
According to series writer Henry Gilroy, they wanted to have Aayla and Ahsoka to have a more upbeat friendship, resembling the way Anakin and Obi-Wan relate to each other rather than the Master/Padawan relationship Ahsoka is usually in.