Where were Sharkey, Patterson and the doctor in the 2nd season?
Seaman Patterson (Paul Trinka) and the unnamed Seaview MD (Richard Bull) were well-established characters in the 1st season, but were AWOL in most 2nd season episodes. Chief Sharkey (Terry Becker)-brought in the 2nd season to replace Chief Curly (the late Henry Kulky)-also missed several of the latter 2nd season episodes. However, all three rejoined the show in the final two seasons. Meanwhile, Stu Riley* (Allan Hunt) went ashore after the 2nd season ended. Any fans know the reason?
*Do you suppose that Stu Riley could have been an ancestor of Ensign Kevin Riley (Bruce Hyde) on the 1st season of STAR TREK?