October 2017, it was announced that Walsh had been cast as a companion in the eleventh series of Doctor Who, and would appear alongside Jodie Whittaker in 2018. Walsh had been a favourite for the role since rumours of his casting began in August 2017. Walsh had previously appeared in spin off series The Sarah Jane Adventures two-part story The Day of the Clown as Elijah Spellman/Odd Bob the Clown. On 9 December 2018, it was confirmed that Walsh would return as Graham for series 12, with the series already in production and due to air in early 2020. Walsh departed the role in the special "Revolution of the Daleks". Critical reception In the Radio Times, critic Paul Jones wrote that "of the rest of the Tardis team, Bradley Walsh as Graham is the stand-out, a really believable and likeable character and able to convey such a range of emotion in just a few looks". Kimberley Bond added that Walsh's performance "remind[ed] us that he actually is a proper actor and not just the host of The Chase." Huw Fullerton said that Graham has been the "surprise emotional powerhouse" of the new series. References External links Doctor Who companions Television characters introduced in 2018 Fictional English people Fictional bus drivers Fictional characters with cancer Fictional people from the 21st-century Fictional people from Yorkshire Bradley Walsh British male characters in television