Below are the character profiles of some of Sarah Janes friends
Alan Jackson is played by Joseph Millson
Alan Jackson is Maria’s father, they used to live opposite Sarah Jane Smith.
Alan works as a computer security consultant. He was offered a new job in America which he accepted.
Brigadier Lethbridge-Stewart is played by Nicholas Courtney
Brigadier Lethbridge-Stewart used to be head of U.N.I.T. Sarah Jane Smith met him and the Doctor when she was a investigating a story
Carla Langer is played by Jocelyn Jee Esien
Carla is Clydes mother, she appeared briefly in one episode where it was explained she’d divorced Clydes father as he’d left her for her own sister
Chrissie Jackson is played by Juliet Cowan
Chrissie is now divorced from Alan Jackson. She still keeps in contact with Alan and Maria
The Doctor has been played by Jon Pertwee, Tom Baker, David Tennant and Matt Smith
The Doctor is probably Sarah Jane’s best friend, they traveled the universe together defeating enemies such as the Daleks. After Sarah Jane met the 10th Doctor she decided to stay on Earth.
Gita Chandra is played by Mina Anwar
Gita Chandra is married to Haresh Chandra. Gita is Rani’s mother. She owns her own flower shop.
Haresh Chandra is played by Ace Bhatti
Haresh Chandra is Rani’s father, he is also the new headmaster of Park Vale High School
Sarah JaneThat's the universe, Alan. Once it's chosen to show you some of its secrets, you can't ever turn your back on it. None of us can.