Colin Baker is an English actor. He played Paul Merroney in the BBC television drama series The Brothers from 1974 to 1976 and the sixth incarnation of the Doctor in the long-running science fiction television series Doctor Who from 1984 to 1986. Baker's tenure as the Doctor proved to be a controversial era for the series, which included a hiatus in production and his subsequent replacement on the orders of BBC executive Michael Grade.

Michael Ian Grade, Baron Grade of Yarmouth, is an English television executive and businessman. He has held a number of senior roles in television, including controller of BBC1 (1984–1986), chief executive of Channel 4 (1988–1997), chairman of the board of governors of the BBC (2004–2006), and executive chairman of ITV plc (2007–2009). He sat as a Conservative Party life peer in the House of Lords from 2011 until after his appointment as Chair of Ofcom.