Series 4 (SJA)

Series 4 of The Sarah Jane Adventures premiered on BBC One and CBBC on the 11th October 2010. According to Doctor Who Magazine, pre-production was under way as early as November 2009. On 4 March 2010, the BBC officially announced that production had been commissioned, with filming expected to begin by the end of March. (The same announcement also confirmed that a 5th series for 2011 had also been commissioned.)

The 4th series began on Monday 11 October, 2010 at 5:15pm on the CBBC channel. The season will see the return of all the core cast members for a 12-episode series.

For the new series, Brian Minchin joins as producer, with Phil Ford as co-producer. Russell T Davies remains as executive producer along with Nikki Wilson.

Primary cast

 * Sarah Jane Smith - Elisabeth Sladen
 * Rani Chandra - Anjli Mohindra
 * Clyde Langer - Daniel Anthony
 * Mr. Smith - Alexander Armstrong

Secondary cast

 * Luke Smith - Tommy Knight
 * K9 Mark IV - John Leeson (departs in The Nightmare Man)
 * Gita Chandra - Mina Anwar (DWM Issue 426)
 * Haresh Chandra - Ace Bhatti

Guest cast

 * Eleventh Doctor - Matt Smith
 * Jo Jones - Katy Manning
 * Celeste Rivers - Floella Benjamin
 * Nightmare Man - Julian Bleach
 * Gemma - Lucie Jones
 * Tia Karim - Laila Rouass
 * Ocean Waters - Cheryl Campbell
 * Mister Dread - Angus Wright
 * Gavin - Joe Mason
 * The Shopkeeper - Cyril Nri
 * Ruby White - Julie Graham
 * Santiago Jones - Finn Jones
 * Louise Marlowe - Doon Mackichan
 * Voice of the Shansheeth - David Bradley
 * Voice of the Robots - Jon Glover
 * First Doctor (archive footage) - William Hartnell
 * Second Doctor (archive footage) - Patrick Troughton
 * Third Doctor (archive footage) - Jon Pertwee
 * Fourth Doctor (archive footage) - Tom Baker
 * Tenth Doctor (archive footage) - David Tennant

Aliens and enemies

 * Slitheen
 * Nightmare Man Shansheeth.jpg
 * Androvax
 * Alliance of Shades (DWM Issue 423)
 * Mister Dread
 * Shansheeth (DWM Issue 419)
 * The Dark Hoard
 * Blathereen
 * Groske Sarah-Jane-Adventures-Death-of-the-Doctor-pictures-6-170x125.jpg
 * Davros (archive footage)
 * Daleks (archive footage)
 * Sea Devil (archive footage)
 * Sontaran (archive footage)

Television stories
The titles and writers of this season's episodes were revealed in Doctor Who Magazine. All of Series 4 episodes will be 2 parts.

Novels
As of August 2010 only two stories from this series were announced for adaptation as a novelisation. These were later reported as being cancelled.

Rumours

 * Gareth Roberts may write an hour long special.
 * On-set videos show Luke saying goodbye to Sarah Jane and the rest of the cast, making it likely that he will leave in this series to be replaced by the new character of Series 5. Alexander Armstrong has also said that Luke goes off to university, and that K-9 leaves with him. It was proven true. However, onset videos of Tommy Knight during the series finale suggest he will return. This was proved true after a trailer about the finale was released depicting Luke on the driveway on 13 Bannerman Road.
 * The Trickster will return in the series finale