Dexter to Haven
3 connections
Dexter
Buffy the Vampire Slayer
Nina Batista on Dexter comments on her husband Angel's two Doublemeat burgers from Buffy's Doublemeat Palace.
The X-Files
The X-Files? Cigarette Smoking Man and Buffy the Vampire Slayer's Spike both smoked Morley cigarettes.
Haven
On Haven Audrey Parker's boss also trained The X-Files? Mulder