| Release: | Apr 1957 |
| Cover: | Apr 1957 |
Challengers of the Unknown: Ultivac is Loose!
| Release: | Apr 1957 |
| Cover: | Apr 1957 |
A former Nazi scientist has served his time, and now works with a bank robber. He created a powerful computer named Ultivac which has come to life on its own, and must contend with the results of that action.
| Writer | Dave Wood |
| Cover Artist | Jack Kirby |
| Penciller | Jack Kirby |
| Inker | Marvin Stein, Roz Kirby |
| Leslie 'Rocky' Davis | |
| Matthew 'Red' Ryan | |
| Kyle 'Ace' Morgan | |
| June Robbins | |
| Walter Mark 'Prof' Haley |
| Age | Silver Age |
|---|---|
| Format | Comic |
| Series Group | DC Universe |
| Genre | Action | Adventure | Science Fiction |
| Country | USA |
| Language | English |