Thor (1966) #137
Ulik's first appearance! When Lady Sif is captured by Geirrodur, King of the Trolls, Thor is lured into battle. But Thor isn't expecting as worthy a combatant as Ulik, the Rock Trolls' most powerful warrior!
Published: 2/1/1967
- Vince Colletta, inker
- Jack Kirby, penciler
- Stan Lee, writer
- Sam Rosen, letterer
- Art Simek, letterer