Detailed Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Q: Passage: Although Scream of the Shalka continues the narrative of the original 196389 programme and the 1996 television film, the show's 2005 revival ignored its events. The series was scripted by veteran Doctor Who writer Paul Cornell, with Richard E. Grant providing the voice for the Ninth Doctor. This performance followed years of rumours that Grant would play the Doctor in a film or new series, and indeed he had appeared as the "Conceited Doctor" in the Comic Relief special Doctor Who and the Curse of Fatal Death in 1999. Grant subsequently went on to appear in the revived television series of Doctor Who as a guest villain in 2012's "The Snowmen" and 2013's "The Bells of Saint John" and "The Name of the Doctor". The Doctor's companion for this adventure, Alison Cheney, was voiced by Sophie Okonedo who a year later would be nominated for an Academy Award for her performance in Hotel Rwanda. She also appeared in the 2010 series of Doctor Who, as Liz 10, in the episodes "The Beast Below" and "The Pandorica Opens". Derek Jacobi reprised his role as the Master in 2007's "Utopia". David Tennant appeared in a cameo role as the Caretaker, later being cast as the Tenth Doctor in 2005.
Link Information: Actors.- Richard E. Grant was later cast as the Doctor in the animated 40th-anniversary adventure Scream of the Shalka in 2003, though his status was relegated to unofficial following the announcement of a new series in September 2003. He later played the villainous Great Intelligence (in its Walter Simeon persona) in 2012 "The Snowmen", and 2013's "The Bells of Saint John" and "The Name of the Doctor".
- Jim Broadbent had previously played the Doctor in a sketch on Victoria Wood, mocking the series' perceived sexism, cheapness, and use of technobabble.
- Roy Skelton had voiced Daleks since 1967.
- Julia Sawalha was being considered for the role of a new companion, a "cat burglar" who would have been introduced in the twenty-seventh season. Building on this, a "what if" article in Doctor Who Magazine #255 featured her in this role along with a hypothetical Eighth Doctor, played by Richard Griffiths, who was at one time considered for the role of the Fifth Doctor.
- Hugh Grant was offered the role of the Doctor again ahead of Christopher Eccleston, and later said publicly that he regretted dismissing it without much thought when he saw how good the series was and that he was hoping to play a villain in the ongoing programme instead. Russell T Davies would later describe Hugh Grant's performance as "fleetingly" one of the best performances in the part of the Doctor.
- Joanna Lumley is the first woman to play an incarnation of the Doctor. The second was Arabella Weir in the Doctor Who Unbound Big Finish episode Exile. On 16 July 2017, Jodie Whittaker was revealed as the official Thirteenth Doctor, becoming the first woman to be cast in the role of the Doctor within the canon of the series.

Question: Who were the other main stars in the special that Grant made a special appearance as the "Conceited Doctor"?
A:
Answer: Jim Broadbent