Warrior Poet: He does not waste his immortality, but rather enrichens his soul by becoming a patron of fine arts, poetry and music.
What the Hell Is That Accent?: Christopher Lambert went to a lot of trouble to develop a mixed non-specific accent appropriate for an immortal who'd lived everywhere over the course of his centuries-long life. Many people just assumed he was trying to do a specific accent and failing badly, even though the intention is underlined by an early dialogue exchange between MacLeod (operating under the alias Russell Nash) and a suspicious cop:
Katanas Are Just Better: His is a genuine Masamune piece, custom made by the master himself after he married the smith's daughter. Its superior quality is handwaved away by stating that his genius allowed him to conceive of forging techniques centuries ahead of his time.
Drives Like Crazy: When he kidnaps Brenda, he drives across New York with all the skill and restraint of an ape on heroin. Of course, he can't exactly die without the head coming off, so he's unconcerned with the path of carnage he leaves behind.
Sharp-Dressed Man: Particularly compared to the scruffy Conner; Fasil appears wearing a three piece suit, tie, and gloves.
Small Role, Big Impact: He's only onscreen for a few minutes, but his death cuts the number of Immortals from four to three and brings Conner to the attention of the police, which leads to him and Brenda meeting.
Chaotic Stupid: For no reason, the first thing that Katana does when he gets to Earth is to enter a New York subway train to go over 400 mph which ends with him plowing the train through a wall onto the street.
Stupid Evil: He had absolutely no reason to go to Earth or send his goons there to kill MacLeod, who, in turn, had seemingly no intentions of returning to Zeist (and even if he did, Katana had already beaten him there once with ease).
Highlander III: The Sorceror
Played by: Mario Van Peebles (1994)
Cool Shades: The round specs he steals from a street hustler.
Expy: Of the Kurgan, as he shares many elements with him (killing a mentor, terrorizing a loved one in a car, etc.).
Pragmatic Villainy: Completely ignores the rules of The Game by gathering a bunch of followers who help him slay immortals in unfair fights, and murders others on Holy Ground. He suffers no consequences for this other than becoming one of the strongest immortals ever.