Several actors who played the Doctor and companions of previous Doctors have appeared in other roles, including Russell, O'Brien, Marsh, Wills, Watling, Padbury, Caroline John, Manning, Elisabeth Sladen, Leeson, Daphne Ashbrook, Tennant and Bernard Cribbins. Sladen also reprised Sarah Jane Smith in a spin-off series simply entitled "". Sladen never appeared as Sarah alongside any incarnation of the Doctor for Big Finish; a series with Tom Baker was planned, but was never recorded due to Sladen's untimely death in April 2011.