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  • Heimerdinger is a portmanteau of J. Robert Oppenheimer and Erwin Schrödinger's last names.
    • His given name Cecil comes from Caecilius, a Roman surname, from caecus "one-eyed > blind"[1].
  • Heimerdinger's alternate/old walk is referred to as 'derpy'.
    • Using emotes will make Heimerdinger alternate between his regular walk and his 'derpy' walk.
  • While UPGRADE!!! UPGRADE!!! is active Heimerdinger gains a cosmetic buff that reads 'Harder, Better, Faster, Stronger'.
  • If Heimerdinger scores a Pentakill he will gain the cosmetic buff Eureka! buff Eureka!
    • This buff references Archimedes' sudden revelation, only in Heimerdinger's case his own came after the mass murder of the enemy team.
  • Heimerdinger is the sixth champion to have more than four abilities, the others being EliseSquare Elise, GnarSquare Gnar, JayceSquare Jayce, KarmaSquare Karma, Lee SinSquare Lee Sin, and NidaleeSquare Nidalee.


  • "For great science" references the internet meme "For great justice", which originated from the Engrish translation of the game Zero Wing.
  • "Back, you dirty ape, back!" references Planet of the Apes.
  • "Raise your what?" references ヽ༼ຈل͜ຈ༽ノ raise your dongers by Michael 'Imaqtpie' Santana from Team Dignitas.
  • "The probability of your continued existence is rapidly approaching zero" was used in RumbleSquare Rumble's League Judgement.
  • "Not enough variables... hmm... not nearly enough variables" references Mordin Solus from Mass Effect 2 ("Too many variables")
  • "42... there's just something about that number" and "Aha, 42, I knew it! Now--- er, what was the question again?" reference The Hitchhiker's Guide to the Galaxy.
  • In Brazilian localization Heimerdinger has a joke referencing El Chavo del Ocho.
  • "I prefer a battle of wits, but you're unarmed!" references William Shakespeare ("I would challenge you to a battle of wits, but I see you are unarmed!")


HeimerdingerSquare Classic Heimerdinger [S|L]
HeimerdingerSquare Alien Invader Heimerdinger [S|L]
HeimerdingerSquare Blast Zone Heimerdinger [S|L]
  • He is basically his Classic self but covered in soot after something blew up on his face.
  • He appears when the game's store is under maintenance.
HeimerdingerSquare Piltover Customs Heimerdinger [S|L]
HeimerdingerSquare Hazmat Heimerdinger [S|L]
  • He is wearing a hazmat suit and holding a bottle of radioactive liquid.
  • A sign featuring RumbleSquare Rumble not being allowed can be seen to his left.
  • He might be referencing Breaking Bad and/or Fallout.


  • Heimerdinger created Master YiSquare Master Yi's Seven Lenses of Insight[2] as well as CorkiSquare Corki's Reconnaissance Operations Front-Line Copter (ROFL Copter)
  • Heimerdinger is seen as a role model by ZiggsSquare Ziggs and as a sellout by RumbleSquare Rumble.
  • Piltover recognizes Heimerdinger's contributions to technological advancement and techmaturgical research.


  1. DeVaan, > Etymological Dictionary of Latin & other Italic languages, p. 79
  2. Heimerdinger and Master Yi's Goggles