Master of Insanity

Credits

• Darren Galer
  assistant
• Geezer Butler
  bass guitar
• Geoff Nicholls
  keyboard
• Mack
  engineer, mix, producer
• Ronnie James Dio
  lead vocals
• Stephan Wissnet
  assistant
• Tony Iommi
  guitar
• Vinny Appice
  drums (drum set)