name of actor who played mike franks on ncis
I miss hearing his gravelly voice saying Probie.. Â« Back to Q & A. Retired special agent Mike Franks, former mentor and partner of NCIS lead character Jethro Gibbs (whom he affectionately called Probie from Day 1), was played by rough-looking character actor Muse Watson until he was killed off this past season.ans like yourself, who're really aching for the voice of his paternal NCIS character, can rejoice in the fact he'll be coming back for the show's big 200th episode, according to the show's producer.