NOTE: for the life of me I could not remember where I knew him from. Turns out he's Sandy Weathers, the New York 1 anchorman and former colleague of Robin Scherbatsky (Cobie Smulders), from nine episodes of How I Met Your Mother! Denisof has worked with Whedon on Buffy, Angel, Dollhouse, and the Avengers movie too- that must be how Smulders ended up playing Nick Fury's aide in The Avengers?
on Hero and Margaret
The only exception is Clark Gregg, who has a major role in Much Ado, but has only made one movie with Whedon (so far)...
- Alexis Denisof (Benedick): 114 episodes of Buffy, Angel, and Dollhouse + 1 movie
- Amy Acker (Beatrice): 84 episodes of Angel and Dollhouse + 1 movie
- Fran Kranz (Claudio): 27 episodes Dollhouse + 1 movie
- Nathan Fillion (Dogberry): 19 episodes of Firefly and Buffy + 1 movie
- Sean Maher (Don John): 14 episodes of Firefly + Serenity
- Reed Diamond (Don Pedro): 13 episodes of Dollhouse
- Ashley Johnson (Margaret): 2 episodes of Dollhouse + The Avengers
- Clark Gregg (Leonato): The Avengers movie only
- Romy Rosemont (The Sexton): The Avengers movie only
- Riki Lindhome (Conrade): 1 episode of Buffy