Avengers #39

1st and Only Appearance - Triumvirate of Terror, Hercules Appearance, Mad Thinker Appearance, Black Widow Cameo, Dum Dum Cameo, and Nicky Fury Cameo

Avengers Vol. 1 #39, published in April 1967, introduces a new robotic threat with the first appearance of the Thinker Robot, an advanced android designed to challenge the combined might of the Avengers. Behind this mechanical menace is the villain Diablo, the alchemist best known for battling the Fantastic Four—now turning his sights on Earth’s Mightiest Heroes.

This issue features an action-packed showdown starring Hercules, Captain America, Hawkeye, Goliath, the Wasp, Quicksilver, and Scarlet Witch. With Diablo manipulating events behind the scenes, and Hercules becoming a more central figure in the team, this issue marks a key moment in the evolution of the Avengers’ sci-fi and magical threats.

Written by Roy Thomas with artwork by Don Heck, this story fuses high-tech danger with sorcery-fueled scheming—pure Silver Age Marvel.

🔗 Source: Marvel Fandom Wiki – Avengers Vol 1 #39

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🔥 Why You Need This Comic:

• 🤖 First appearance of the Thinker Robot, a dangerous AI construct

• 🧪 Features Diablo, alchemical villain crossing over from Fantastic Four

• 🏛️ Spotlights Hercules as he grows into a leadership role within the Avengers

• ✍️ Classic creative team: Roy Thomas (writer) and Don Heck (artist)

• 💥 A unique blend of sci-fi tech and magical villainy—a signature Marvel mix

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🎯 Perfect For:

• Collectors of robot/AI villain first appearances

• Fans of Hercules and his early Avengers development

• Readers interested in cross-title Marvel villain arcs (Diablo)

• Investors looking for affordable Silver Age Marvel keys

Writer/s: Roy Thomas
Letterer/s: Artie Simek
Inker/s: George Bell
Cover Artist/s: Don Heck
Interior Artist/s: Don Heck

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