Revealing mistake: During the bunker siege, footage recycled from an earlier episode creates the sudden appearance of a white station wagon parked beside the police cruisers that isn't there in all the other shots. (00:41:40)
The Clock Struck Twelve - S5-E12
Character mistake: After distracting the guards, Danno tosses a grappling hook onto a ledge and climbs the side of the building. He then goes about his business, carelessly leaving the hook and rope dangling from the ledge for all to see. For a seasoned 5-0 team member, that's pretty sloppy covert operations. (00:22:40)
The Jinn Who Clears The Way - S5-E5
Factual error: Danno, who's been a cop long enough to know better, reports to McGarrett that the lab has determined Wong's blood type to be AO. Blood is typed as A, B, AB or O. There is no type AO.
Continuity mistake: Aboard the boat, when Danno draws his gun, both his suit and his tie change colors and patterns completely between takes.
Here Today, Gone Tonight - S5-E17
Continuity mistake: Danno boards the helicopter without his briefcase, but arrives to conduct the interview carrying the case and tape recorder. He takes the copter back home again with nothing in hand, getting into his car empty handed as well. But he enters McGarrett's office carrying the briefcase again.
You Don't Have To Kill To Get Rich -- But It Helps. - S5-E3
Revealing mistake: When the shot pans to its feet, the dead body floating in the water can be seen to wiggle its toes.
Continuity mistake: McGarrett wears a blue suit on the ride to the airport, but when he gets out of the car, his suit is brown.
Death is a Company Policy - S5-E1
Continuity mistake: The Five-O computer here lists McGarrett's name as Steven J. McGarrett. But in "A Gun for McGarrett," his middle name is revealed to be Aloysius. Strange that the computer doesn't know the name of its own department's head.
Continuity mistake: After murdering the cop, Frank and Luther steal a rifle from the squad car, then close the door. No one goes near the car again, but a few minutes later, the door has re-opened itself. (00:06:00 - 00:11:15)
The Clock Struck Twelve - S5-E12
Plot hole: As a security test, McGarrett secretly has several dummy bombs planted in the court building, then later shows the governor where they are. Each time he pulls one of the devices from its hiding place, citizens in the courthouse stroll casually by without so much as glancing at the loudly-ticking "bomb." No one knew about the test, so McGarrett's bombs should be attracting some attention, if not causing outright panic. (00:05:00)
'V' For Vashon: The Father (2) - S5-E10
Continuity mistake: From his office on the second floor, McGarrett looks out at the office building across the plaza. But the POV shot that follows is taken from ground level.
Continuity mistake: When the police cruiser with Danno aboard leaves HPD HQ, it's a 1967 Ford Galaxy 500 with wind wings. But in the next shot of it on the Honolulu streets, the car is a '71 or '72 model with no wind wings. (00:43:30)
You Don't Have To Kill To Get Rich -- But It Helps. - S5-E3
Revealing mistake: We see the body of Karen Bell 30 fathoms underwater, with her feet tied to a concrete block. But just before the shot cuts, the "corpse" wiggles its toes.
Death Wish on Tantalus Mountain - S5-E2
Visible crew/equipment: On top of the mountain, miles from any artificial light source, several studio lights and reflector panels are visible in the side of McGarrett's shiny black Mercury. (00:14:45)
Revealing mistake: A loud, fierce gun battle rages between dozens of 5-0 sharpshooters, Army MPs and the desperadoes inside the payroll office. Amidst all the high-powered rifle fire, a woman in a blue dress strolls casually by in the background, well within bullet range, and never even turns her head to see what all the ruckus is about. Gee, you'd think colossal shooting wars broke out on her block every day. (00:13:30)
Death Wish on Tantalus Mountain - S5-E2
Character mistake: McGarrett tells Pereno that the sabotaged race car went over a cliff. But the car crashed into a wall, with no cliff in sight. It's very unlike Hawaii's top cop to get the facts wrong - especially when he was an eye witness to the event. (00:44:00)
'V' For Vashon: The Father (2) - S5-E10
Character mistake: Hayward tells Vashon that McGarrett's office is on the third floor of the Iolani Palace. Previous episodes have placed the office on the second floor, or have shown the palace to have only two floors. (00:31:45)
'V' For Vashon: The Patriarch (3) - S5-E11
Character mistake: When Ben talks to the old guy about Spider Brown, Ben says, "Somebody that got rich the past week." The time between the shooting and trial was probably months, not just one week. Spider would have been flashing money right after the hit, and then disappeared.
'V' For Vashon: The Father (2) - S5-E10
Character mistake: Chin and McGarrett call the bomber Marcos, but his name on the social security card says Macros and Vashon calls him Macros.
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.