Lynda was in the Big Brother house on Satellite 5 and assisted the Doctor in defeating the Daleks. Lynda was exterminated when the Daleks found her. Copyright:BBC
Jackie Tyler
Rose Tyler's mum, Jackie, assisted the Doctor on many adventures; helping whilst he was regenerating and fighting during the Battle of Canary Wharf. Jackie would do anything for her daughter. She was widowed by Pete Tyler but married Parallel Pete and lived in the Parallel world (nicknamed Pete's World) after she was trapped there with Rose.
Pete Tyler
Rose Tyler's dad, Pete Tyler was an ambitious business man, always trying to make and sell ridiculous new products. He widowed Jackie Tyler after he was run over. Parallel Pete from the other universe assisted the Doctor and Rose in defeating the Cybermen and winning the Battle of Canary Wharf. He cared for his daughter dearly and lived with her and Jackie on the Parallel World. Copyright: BBC
Adam
Adam helped the Doctor and Rose defeat the Daleks and was given the chance to travel with them however he betrayed all that he knew about them and unintentionally lost the TARDIS key to the Editor. He also had an operation to put a chip in his head to absorb data and after that he was sent home. Copyright: BBC
Sylvia Noble
Sylvia Noble was Donna Noble's mum and widow of Geoffrey Noble. She was often quite snide and cruel but had a caring side. Sylvia cared deeply for Wilf and Donna but not so much the Doctor until the End of Time Part 2 when she waved him off with a smile. Copyright: BBC
Brian Williams/Pond
Brian Williams is Rory Williams' dad. After accidentally being taken on board the TARDIS he faced Solomon, his robots and dinosaurs. A few months later he helped the Doctor observe the cubes. He encouraged Amy and Rory to return to travelling with the Doctor on the condition he brought them back safe. Brian was given the opportunity to join them but stayed saying, "Somebody has to water the plants." In P.S. he receives a letter from Rory saying that they won't be returning. He has a heartfelt moment with adopted grandson Antony Brian Williams (named after him). Copyright: BBC