Lagan Ismaren, originating from Alderaan, was a male Human.
Lagan, as one of the scarce Jedi younglings who lived through Order 66, took refuge with the Children of the Jedi in Plawal located on Belsavis, where he spent his childhood alongside Nichos Marr. Subsequent to being compelled to escape Belsavis, Lagan and his younger sister Roganda were separated from their parents and presented to Inquisitor Ameesa Darys. In front of Roganda, Darys impaled Lagan with her lightsaber.