Marrok is a masked, silent Force-using mercenary in the employ of Morgan Elsbeth in the Disney+ series Ahsoka (2023), appearing from the first episode and played by Paul Darnell. The reference material identifies him as a former Inquisitor; his species is not established on screen and the field is left blank here.
He works alongside Baylan Skoll and Shin Hati, carries the Inquisitorius double-bladed spinning lightsaber, and is killed by Ahsoka Tano on Seatos in 9 ABY. His function in the series is to show what became of the Empire's Force-using apparatus once there was no Empire to report to. Canon.
Catalogue entry. This figure has a verified record here rather than a full write-up — the encyclopedia labels its own depth instead of padding it.