The idea sounds like a fun crossover concept: Duncan MacLeod and Zorro both fit the same swashbuckling, honor-driven mold, so teaming them up would feel stylish rather than random. Based on the public references I found, Duncan MacLeod is portrayed as a noble Immortal champion, and Zorro is the masked swordsman legend, which makes their pairing feel very natural for swordplay and vigilante storytelling.

Why it works

  • Both characters are expert swordsmen with a strong moral code.
  • Both operate as lone protectors who fight corruption and injustice.
  • Their personalities would create good tension: Duncan tends to be weary and world-hardened, while Zorro is more theatrical and covert.

What could be interesting

A team-up could lean into:

  1. Old-school dueling scenes.
  2. A clash between immortality myth and masked-hero legend.
  3. A story about two men who protect the helpless in very different eras and styles.

Possible downside

It could feel gimmicky if the story does not give them a real shared mission. The best version would treat both as serious heroes first, fan-service second.

My take: it would be cool if written with restraint, because the chemistry is already there.

TL;DR: It is a strong matchup on paper, especially for action and character banter, but it needs a solid plot to avoid feeling like a novelty.