NCIS looked at a lot of famous actors before casting Mark Harmon as Gibbs, and some of them are very surprising

No, we're not talking about the young Gibbs we saw in flashbacks and on NCIS: Origins. We're talking about someone else snagging the role on NCIS before Harmon got it.

Harmon played the lead role of Gibbs on NCIS from 2003 to 2021. He left the series at the start of season 19 and Gibbs was retired to Alaska.

Harmon also appears in NCIS: Origins, where he serves as narrator and appears in scenes where Gibbs writes a memorial about his heroics.

Actor Austin Stowell now plays Young Gibbs in NCIS: Origin, taking over the role from Sean Harmon, who played Young Gibbs in NCIS flashbacks.

NCIS fans continue to hope that Gibbs (played by Harmon) has a reason to reappear on the main series in the future.

Who else could have played Gibbs on NCIS?

A funny report…