(written from a Production point of view)
Robert Della Santina was the Unit Production Manager for Star Trek: Deep Space Nine. He occasionally served as Line Producer for the show's first two seasons but became the the full-time Line Producer at the start of season three. He was then elevated to Coordinating Producer at the start of the fourth season. He was known on the set of DS9 as "Bobby D". Among Santina's duties was the supervision of the Paramount Pictures sound stages that Star Trek: Deep Space Nine used. (Star Trek: Deep Space Nine Companion)
Prior to his work on Deep Space Nine, he spent sixteen years working for Aaron Spelling Productions, working on such shows as The Rookies, Charlie's Angels, Hart to Hart and Dynasty. He also served as second assistant director on the 1973 blaxploitation film Slaughter's Big Rip-Off, starring Brock Peters. After DS9, he worked on Profiler.