I'm really enjoying watching all of my favourite actors doing the ALS Ice Bucket Challenge.

Stephen Amell doing it shirtless:

Who called John Barrowman. He did it in an Arrow villain T-Shirt, but his husband brought up the shirtless quota for this one (sorry, no idea how to embed WhoSay videos):

The funniest one I've seen is definitely Nathan Fillion's:


George Takei gets sci-fi bonus points:

Relevant to everyone's interest: Michael Trucco, JR Bourne, Shatner.

And as someone who's worked at a non-profit I'm just a little jealous of this viral success. So, what are your favourite Ice Bucket Challenge vids?