Zak is a secondary antagonist in the short-lived British television series TUGS. He is the third member of Captain Zero's Z Stack fleet and is used for a wide variety of tasks around Bigg City Port. Zak's main role was that of a flunky to Zorran: a confused thug. He's usually seen working with fellow Z Stack Zebedee.
- Zak is voiced by British actor, animator and modeller Shaun Prendergast, who also voiced Sunshine.
- In the Sunbow Entertainment children's show Salty's Lighthouse, Zak and the other Z Stack tugboats were depicted as being good. Zak was voiced by Terry Klassen, who gave him a gruff Brooklyn accent.
- In the Japanese dub of TUGS, he was voiced by Hideyuki Umezu.