Zark the Zagoid had been sent by Z.I.P. – Zargoids Invade Planets – to spy on earth and decide if it was worth invading. He accidentally got locked inside a space invader game until Sally Carter released him and discovered only she could see him. ZIP ordered Zark to find out about earth by spying on Sally.
- Art: Robert MacGillivray
- No episode in issue #151
- Sally and the Spying Space Invader – Suzy: #139 (4 May 1985) – #153 (10 July 1985)