Jim Beaver

Actor (Admiral Daniel Leonard) — Enterprise

American actor and writer who played Admiral Daniel Leonard, one of the Starfleet flag officers who approve the launch of Enterprise, in the Star Trek: Enterprise pilot Broken Bow.

Jim Beaver is an American actor, playwright and film historian who has a single Star Trek credit.
In Broken Bow he plays Admiral Daniel Leonard of Starfleet Command. Leonard sits beside Admiral Forrest during the tense meeting with Ambassador Soval and the Vulcan delegation over the fate of the wounded Klingon courier Klaang, and he is present at the ceremony when Enterprise leaves spacedock.
The character is one of three Starfleet officers in the pilot named in tribute to the leads of the original series, in his case Leonard Nimoy. Unlike Forrest, Leonard was not brought back in later episodes.