Charmless Man
Striker
It's a bit much for me. Prefer to stick to the Gamma Ray/Neck Oil.
Doubt they count as craft but the Adnams beers they have in M&S are very good IMO.
Addams have certainly had a stab at the 'craft' market with their Jack Brand range. Dry-hopped lager, Mosaic IPA etc'.
They're actually quite nice.