  We describe several families of non-unitary coset conformal field theories
that possess truly marginal couplings. These generalize the known examples of
Wess-Zumino-Witten models on supergroups such as PSU(n|n) or OSP(2n+2|2n). Our
extension includes coset space sigma models, affine Toda theories or
Gross-Neveu models which are believed to arise in certain limits.
