John BrownJohn Brown Selective FilmographyThe Avengers(1998)Special effectsSpecial effectsAlien³(1992)Special effectsSenior special effects technicianAliens(1986)Visual effectsSenior special effects technician (Visual effects unit)Captain Scarlet and the Mysterons(1967)Art departmentSculpting supervisor (7 episodes, 1967-1968)Stingray(1964)Art departmentSculptor (39 episodes, 1964-1965)Other crewSculptor (2 episodes, 1965)(*) uncredited