Howling:Things pretending to be something else?
Eleventh Hour
That alien whatsit pretending to be all those people in comas. And the perception filter on the door. And Rory dressing up in the past.
The Beast Below
The Smilers pretending to be fairground toys, the alien tentacle pretending to be roadworks and the winders pretedning to be human.
Victory of the Daleks
Daleks pretending to be lovely. Doctor Bracewellbot pretending to be human.
Time of Angels/Flesh and Stone
Angels pretending to be none-angels. Angels pretending to be human voices.
Vampires of Venice
Fish people pretending to be vampires pretendng to be humans.
Amy's Choice
Spores pretending to be the Dream Lord in a pretend environment.
The Hungry Earth/Cold Blood
Rory pretending to be a policeman. Drills going up pretending to be drills going down.