The Thinker Guild is one of the five guilds of Krypton. Its members were bio-engineered from birth to be overly intelligent. The glyph for this guild could be translated as "Analyze", "Science", "Logic", and "Rationality".
The Thinker Guild had existed for over 100,000 years, from when Kryptonian civilization began to advance. Many noted scientists and scholars came from the guild and were instrumental in furthering Kryptonian technology and enabling them interstellar travel. Historically, the family most associated with the Thinker Guild was the House of El.
- Alura In-Ze
- Kara Zor-El
- Jor-El - Krypton's foremost scientist (at the time of the planet's destruction)
- Lara Lor-Van
- Kal-El - latest member of the House of El