|Appearances||"Pilot", "Primal", "Just Another Day"|
Lowjack is the town stray dog in Eureka. Jim Taggart has repetitively failed to capture him over many years of trying and considers Lowjack his white whale. In "Pilot", Sheriff Cobb appeared to be taking care of Lowjack and permitted him into his house to eat.
- In "Primal" Taggert said; "Ironic animal testing created you, now it saved you. But for a dog with an 130 IQ, you should know to look out for cars". This hints at Global Dynamics testing on animal intelligence and Lowjack's hidden capabilities of thought. (Noting that Sheriff Jack Carter has an IQ of 111)