who stars in ncis?
'NCIS' Star Sean Murray on Michael Weatherly's Final Episode and New Beginnings: 'People Are Afraid of Change'. Spoiler alert! To find out how NCIS said goodbye to Michael Weatherly, click here. Itâs the end of the road for NCISâ Michael Weatherly. The 47-year-old star bids farewell on Tuesday to the longtime CBS procedural after 13 seasons and more than 300 episodes playing the charming goofball, NCIS Special Agent Tony DiNozzo.