Continuity mistake: 12-17 "A Bird in Hand": We see Angie take photos of mobster Del Vecchi with a 35mm camera. But later on, she develops the same photos and says she took them with a 110 camera hidden in her purse. She's a professional photographer and would certainly know the difference between 35mm and 110 film.
Continuity mistake: The bad guys are driving a dark green '62 Cadillac - with fins. After Five-O's sharp shooters fire at it, the Caddy hits a concrete wall. In the next shot of the wreck, the green '62 has turned into a black '64 - without fins. (00:42:45 - 00:44:35)
Twenty-Four Karat Kill - S1-E8
Continuity mistake: McGarrett gets out of his car wearing a gray suit, and walks into Dennisen's office wearing a blue one. (00:20:15)
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.
Continuity mistake: At the airport security checkpoint, Sam drapes a garment bag over the counter, but leaves after the inspection without taking it. Next shot, though, it disappears. (00:44:30)
...And I Want Some Candy and a Gun That Shoots - S4-E6
Continuity mistake: Danno boards the helicopter wearing a brown suit, but arrives wearing a Hawaiian shirt. When he gets out of the aircraft a few shots later, though, he's back in the brown suit, with no time to have changed.
The Grandstand Play (1) - S3-E23
Continuity mistake: The monogrammed handkerchief has cursive initials the first two times we see it. But when Lon gives it to McGarrett, the initials are in block letters.
Continuity mistake: Recycled footage is again a bit too obvious here, when McGarrett's 4-door Mercury suddenly becomes the 2-door model he drove in the pilot film. It also causes him to arrive, exit the car and walk into the building wearing a grey suit, but enter the Federal agent's office in the next shot wearing a blue suit. (00:25:00)
Continuity mistake: McGarrett's left hand rests on the side of the large multi-line telephone as he makes his call. The camera angle reverses, and his hand instantly jumps to a different position, resting on top of the phone. (00:41:00)
Continuity mistake: 8-9 "Retire in Sunny Hawaii - Forever": When Danno leaves his car, he's wearing a brown suit, but he enters Ellen's office wearing a black one.
Continuity mistake: 8-13 "A Touch of Guilt": The assault is said to have occurred at the Zanza Bar. But when we see the location, the bar is called The Makai Lagoon Club instead.
Continuity mistake: 7-1 "The Young Assassins": The hotel towel draped over the first victim's beach chair instantly changes positions between shots. You can see the words "Aloha, Hawaii" emblazoned on it, until the shot changes. Then it's moved up, and only the word "Hawaii" and the hotel's logo are showing. (00:01:50)
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.
Continuity mistake: 8-15 "Deadly Persuasion": Danny says he hasn't fired his old 45 automatic "since I got out of the service." But at least two previous episodes had established that he joined Five-O right out of college, and was never (not even before college) in the service.
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: When Angela is talking to Sloan, her position in the hotel room chair changes back and forth noticeably between takes. (00:02:30)
Continuity mistake: Danno drives to Brohme's house in a black 1966 Ford Galaxy 500, but arrives in a green 1969 Ford LTD. (00:41:05)
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)
Continuity mistake: McGarrett has infiltrated a crime syndicate and is standing on the patio of a beachside house with two men and a woman while Danno, in a boat several hundred yards offshore, is taking pictures with a camera and telephoto lens. When the pictures are developed, the background in the photos is the ocean, not the beach house and patio.
Cocoon (1) - S1-E1
Continuity mistake: As McGarret goes to call the cops, Brent removes the knife from the John Doe assailant's hand. As the angle changes, Brent takes the knife from the dead man's hand again.
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.