If you ask any Doctor Who fan, or Whovian, who the Time Lord's most memorable monsters are, they'll probably either say the Daleks or the Cybermen. Here's a collection of the different Cybermen designs across the ages since their debut in 1966's The Tenth Planet, featuring suits, helmets and props on display at the Doctor Who Experience in Cardiff Bay, Wales on May 20, 2013.
This new Cyberman look was used from 2006 to 2012, and an upgraded, sleeker version of the Cybermen recently appeared in the seventh season episode 'Nightmare in Silver' in 2013.
Now here's a blast from the past, with five generations of Cybermen heads, looking at how their distinctive features evolved over time.
The Cybermen will always have a special place in my heart for the death of Fifth Doctor Companion 'Adric' in 'Earthshock' in 1982.
Let's hope they continue to evolve as Doctor Who monsters, as the last seventh season episode featuring them wasn't the best.