A humble, wise mentor to Knecht with a serene demeanor, who plays a crucial role in Knecht’s spiritual development through meditation and contemplation.

A worldly guest student who debates with Knecht about the merits of Castalia and later becomes a politician, symbolizing the link between Castalia and the outside world.

An eccentric and melancholic friend of Knecht, known for his exceptional skill in the Glass Bead Game and individualistic nature.

A historian and mentor to Knecht, skeptical of Castalia, who challenges Knecht’s worldview during his stay at a Benedictine monastery.

An anonymous, collective voice compiling Knecht’s biography with respect, though with potential biases due to their Castalian background.

A friend of Knecht and a confidant in his musical pursuits, who contributes to the documentation of Knecht’s life.

A mentor who guides Knecht during his early years in the Order and serves as a critical voice in his development.

Knecht’s meditation master and later the President of the Order, who values composure and imparts the importance of meditation to Knecht.

Plinio's son, who embodies a worldly and impulsive nature but shows potential for greatness under Knecht's brief tutelage.