Karen Gillan has taken the ALS Ice Bucket Challenge – dressed as a Power Ranger – challenging Doctor Who showrunner Steven Moffat to take the challenge next.

The ALS Ice Bucket Challenge helps raise awareness and donations for ALS charities. ALS is also referred to as motor neurone disease.

> Find out more about ALS and how to donate.

Gillan’s former co-star Matt Smith and Torchwood star John Barrowman took the challenge last week.

Watch Karen Gillan’s video…