The latest run of the internet drama stars Sophie Colquhoun as Ava, Samuell Benta as Donnie and Modupe Adeyeye as Faith.
Additionally, Emaa Hussen and Tosin Cole reprise their roles as Naz and Sol from series two, while a string of EastEnders favourites are due to make appearances in the show.
In the video below, EastEnders actor Ricky Norwood - who started out on E20 at the beginning of last year - introduces the new cast. Show producer Deborah Sathe also gives us some hints of what to expect from the series.
EastEnders: E20 returns on September 20.
> EastEnders: E20 renewed for third series
> EastEnders unveils new E20 cast members
> EastEnders: E20: Guide to the new characters
Watch the EastEnders: E20 video here:
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