The main behind-the-scenes friction on Knight Rider was generally described as involving David Hasselhoff and NBC/network pressure , rather than one single long-running feud with a specific co-star. Interviews and later retrospectives also point to Hasselhoff’s own difficult period during that era, which people often connect to the show’s stressful production.

What people usually mean

If someone says Hasselhoff “had problems” during Knight Rider , they’re usually referring to one of these:

  • Network and production tensions , especially around creative control and the show’s direction.
  • Personal struggles Hasselhoff later discussed in connection with that period, which made the experience harder overall.
  • General on-set pressure , which is common on a hit action series with heavy stunts and long shoots.

Co-star rumors

There isn’t a solid, well-sourced answer pointing to one particular co-star as “the problem” in the way gossip posts sometimes suggest. Most credible retrospectives focus more on the production environment than on a specific cast feud.

Context

Hasselhoff has later described Knight Rider as a great job and spoken warmly about the experience in interviews, which suggests the story is more complicated than simple bad blood. That’s why a lot of the online chatter ends up overstating the drama.

TL;DR

The best-supported answer is: Hasselhoff’s main problems during Knight Rider were with production pressure and network issues, not a clearly confirmed feud with one named cast member.