"The Metamorph" is the first episode of the second series of Space: 1999 (and the twenty-fifth overall episode of the programme). The screenplay was written by Johnny Byrne; the director was Charles Crichton. Previous titles were "The Biological Soul" and "The Biological Computer". The final shooting script is dated 19 January 1976. Live-action filming took place Monday 26 January 1976 through Monday 16 February 1976.