Maybe the Doctor has a thing for redheads.
After Catherine Tate's adventures as Donna Noble with David Tennant's Doctor Who, Matt Smith's newly regenerated Doctor hooked up with another flame-haired companion.
Amy Pond burst onto the screens of Doctor Who fans as a policewoman kissagram - and Karen Gillan's place in male fantasies was secured.
Since appearing in The Eleventh Hour in April 2010, she has travelled through time and space, cheated death countless times, got married and had a baby who she had actually already known for some time as an adult.
But she remains the extraordinarily attractive girl next door with the gentle Scottish lilt, plenty of fire and a sparkle in her eye.
No wonder the Doctor travelled with her for two and a half years - longer than any other companions in the current generation of the Time Lord.
But now the adventures are over, with Jenna-Louise Coleman taking on the task of accompanying Doctor Who .
Karen has already spread her wings beyond Doctor Who, appearing as model Jean Shrimpton in BBC4 film We'll Take Manhattan, but until she is back on our screen, enjoy this collection of hot Karen Gillan pictures...
