  We write down the supermembrane actions for M-theory backgrounds dual to
general ${\cal N}=2$ four-dimensional superconformal field theories. The
actions are given to all orders in fermions and are in a particular
$\kappa$-gauge. When an extra U(1) isometry is present our actions reduce to
$\kappa$-gauge fixed Green-Schwarz actions for the corresponding Type IIA
backgrounds.
