For the mirror universe counterpart, please see D. Till (mirror).
D. Till was a Starfleet officer in the 23rd century.
Till a member of the Fleet Ops team listed on the dedication plaques of the USS Shenzhou and the USS Discovery. (DIS: "The Vulcan Hello", dedication plaque; DIS: "Context Is for Kings", dedication plaque)
This character was only mentioned in writing.
This officer was named after production manager David Till.