Muse Watson as Former NCIS Supervisory Special Agent Mike Franks
On NCIS: Without Mike Franks, there would be no NCIS Special Agent Leroy Jethro Gibbs. Though Franks left NCIS in 1996, he remains a big part of Gibbs' life, helping him recover from a bomb blast in "Hiatus Part I" and "Hiatus Part II."
In "Swan Song," Franks risks it all while helping Gibbs solve a case involving a menacing serial killer.
Where you may have seen him on CBS: Muse plays Mickey Bates on Criminal Minds and Admiral Arthur Fessenden on JAG.
Watch Franks appear as one of Gibbs' hallucinations in "Stop The Bleeding" on CBS All Access.