Dalek Puppet Emperor (Meet the Doctor)

This Dalek Puppet Emperor openly announced his hostility to the Time Lords. This was considered part of the build up of events that led to the Last Great Time War between the Dalek Empire and Time Lords. (PROSE: Meet the Doctor)

Behind the scenes
Meet the Doctor never clarifies the identity of this specific Dalek Puppet Emperor. It may be a reference to Davros, who, during his time as the Dalek Emperor of the Imperial Daleks, proclaimed that his Daleks would destroy Gallifrey and the Time Lords, making themselves the new Lords of Time, in Remembrance of the Daleks.