The broad faces with eyes far apart and batwing eyebrows in this artwork are identical to Heck's signed story "Hot Steel" in #4. He is also credited to "Danger" by Jerry Bails' Who's Who.
The face is swapped from "Ransom In Oil" in #9 by Don Heck.
Round-jawed faces, round eyes and lower lips, and simple lines in ears are all identical to the other Morisi-stories in this series, and Morisi is credited to "Danger" by Jerry Bails' Who's Who.