As announced earlier this year, the new arrivals are Mercy's sister Faith (who makes her debut in the main soap tonight), along with troubled Ava and Donnie.
In preparation for the new series, we've just updated our EastEnders: E20 spoiler section with synopses for the first three episodes. They not only contain details on the trio's storylines but also how they impact on the lives of existing characters like Janine, Kim and Masood…
Read the new spoilers below:
> EastEnders: E20 - Donnie and Ava descend on Albert Square
> EastEnders: E20 - The trio target Albert Square's residents
> EastEnders: E20 - Janine causes trouble for the trio
EastEnders: E20 returns to the official BBC website on Tuesday, September 20. Three episodes will air each week, and there's also an omnibus edition airing on BBC Three each Friday at 8.30pm.
> EastEnders unveils new E20 cast members
> EastEnders: E20: Guide to the new characters
> EastEnders: E20: Ricky Norwood introduces the cast