Season 1

1. The Bubbler

2. The Shocking Electrical Monster

3. The Spinner

4. The Perilous Paper Doll

5. The Spyder Man

6. Beamatron

7. The Burrower

8. The Menace from the Wax Museum

9. Timeatron

10. Smogula

11. The Alien Brain from Outer Space, Part 1

12. The Sinister Speck

13. Fero, the Fiendish Fiddler

14. The Alien Brain from Outer Space, Part 2

15. Mother Gruesome

16. Televisatron

17. U.F.O. Unidentified Fiendish Object

18. The Diabolical Dauber

19. Aquator

20. The Unearthly Plant Creatures

21. The Wretched Professor Stretch

22. The Devilish Dragster

23. The Deadly Living Images

24. The Return of the Spinner

25. Satanic Surfer

26. The Colossal Junk Monster

27. The Puzzler

28. The Scheming Spraysol

29. The Incredible Aqua-Monsters

30. The Scurrilous Sculptor

31. The Artful Archer

32. The Gigantic Ghastly Genie

33. The Insidious Inflator

34. The Dastardly Diamond Dazzler

35. The Birdman

36. The Return of the Perilous Paperman

37. Cronella Critch the Tricky Witch

38. The Invasion of the Robot Creatures

39. The Terrible Twister

40. Professor Stretch Bounces Back

41. The Manchurian Menace

42. The Terrifying Tapper

43. The Anxious Angler

44. The Mad Monster Maker

45. The Rascally Ringmaster

46. Billy the Kidder

47. The Monstermobile

48. The Fiendish Dr. Futuro

49. The Crafty Clutcher

50. The Pilfering Putty Monster

51. The Infamous Mr. Instant

52. The Bizarre Batter

53. The Spooktaculars

54. The Not So Nice Mr. Ice