special effects supervisor (27 episodes, 2007-2010)
special effects (10 episodes, 2016-2019)
lead pyrotechnician (5 episodes, 2019)
pyrotechnician (1 episode, 2007)
special effects technician (1 episode, 2009)
special effects technician (1 episode, 2017)
special effects (1 episode, 2018)