Morter, known for campaigning against "manufactured pop music" from the X Factor and helping Rage Against The Machine to Christmas number one in 2009 features in the spot.
"Now I am raging against the banks", he says in the YouTube video, which aims to show the brand as an alternative to traditional high street brands.
The bank, set up by a duo "exasperated by the ethics, service and attitude of the banks", encourages Brits to rethink why they would use a bank for their current account and exposes the "bleak adversarial banking model" that pushes customers towards "harmful debt."
Brand: Ffrees Family Finance
Production: How Now
Creative: Tiger Savage