A Man, a Plan and a Gal: Julia - S11-E2
Continuity mistake: While Frasier and Niles are in the kitchen talking about Julia, the gravy boat on the stovetop changes position without human assistance.
The Dog That Rocks the Cradle - S7-E5
Continuity mistake: Just before Roz gets up to see to baby Alice, Frasier is looking at a magazine. As she stands up, and the shot changes, he is picking up a yellow pad.
Continuity mistake: Niles and Frasier are looking at books trying to figure out Frasier's dream. When Daphne and Marty come in the door, the shot shows that the book that was on the end of the table has moved quite a distance and is now in front of Niles.
Flour Child - S2-E4
Continuity mistake: Niles is holding baby Nathan in the hospital and Arleen takes him back because he's crying - suddenly the blanket is up around his head even though it was hanging loose before. (00:21:45)
Continuity mistake: Roz and Daphne are standing in front of the elevator talking about the wedding. Daphne is holding Frasier's choice of a bridesmaid's dress. In one shot, Daphne is holding it over her arm, but when she turns toward the door, with no time to change position naturally, she is holding the dress by the hanger.
Continuity mistake: Roz is talking to Frasier, Gil, and Bulldog at KACL and has her hands in front of her, with her mug in her left hand. In the next shot, as she says "everyone at her last station was scared to death of her", her mug is in her hand tucked up under her arm - with no time for her to change positions naturally.
Continuity mistake: While Frasier and Martin are in the living room talking about Frasier's offer to pay for the wedding, his blue bottle of water moves from one end of Marty's little table to the other.
Continuity mistake: Kate is arranging things in her office and has placed a black and white box on her desk. As she is telling Frasier how she wants him to spice up his show, the box changes position by about 45 degrees although no one touches it.
The Kid (2) - S5-E4
Continuity mistake: When Niles and Daphne are talking at Frasier's door, Daphne says "Now poor Roz really is in that predicament" and her arms are in front of her with her hands clasped. Niles says, "Do I smell chicken?" and immediately her arms are crossed, without enough time for her to change position.
Frasier's Imaginary Friend - S5-E1
Continuity mistake: When Frasier is talking to Niles and Martin in the restaurant (when he is supposed to be meeting Kelly) and the level in his wine glass alternates between being half full and almost empty and back again.
Continuity mistake: Marty, Frasier, Niles, and Daphne are in Frasier's apartment, talking about Marty moving in with Niles - M.'s beer can and remote are sitting on his little table. In one shot they are quite close together, but in the next the can has moved about six inches forward.
The Bad Son - S8-E3
Audio problem: Frasier is standing in his living room talking to Niles. We hear a knocking or tapping. As Frasier is expecting his date, Miranda, this might make sense, but they do not seem to hear it and make no move towards the door. A short time later the doorbell rings and Frasier's date arrives.
A Midwinter Night's Dream - S1-E17
Continuity mistake: Early in the show Niles shows up at Frasier's in his pirate outfit. He has a plastic knife in his sash which changes position noticeably several times during the scene (without Niles touching it).
Roz, a Loan - S6-E9
Continuity mistake: Roz gives Frasier a gift of a decanter which he takes partially out of the box. By the next shot he has it back in the box and out of sight; with no time for this to happen naturally.
Continuity mistake: As Frasier and Niles are starting work on their book, Marty gets four snacks and a beer and sits down in his chair. He gets up and we see the two bags that were behind the beer and can of something are now in front of them. Marty never touched them during that time.
Continuity mistake: In one of the sequences where Niles and Shenkman are running in and out of the bedroom, Shenkman sprays perfume around the bed. The roses that were on the pillow have now completely disappeared and never reappear although neither Niles nor Shenkman touched them.
Continuity mistake: When Frasier is in his booth with Bulldog lecturing him about his phony hero status, Bulldog is eating a cookie that goes from being semi-circular to having a large round bite out of it and then back to being semi-circular again.
Hot Pursuit - S7-E18
Continuity mistake: Early on in the show, Roz leaves yellow papers neatly on Frasier's coffee table and leaves. In later shots, while the others are talking, we see the papers become scattered - even though no one goes near them.
Frasier's Imaginary Friend - S5-E1
Continuity mistake: When Frasier gets up to get out of the plane seat between the married couple, he is clutching his coat and boarding pass in his left hand/arm but when he reaches the aisle, they are in his right hand.
Answer: It equals the record of James Arness of "Gunsmoke" for the actor who's played the same part on TV NOT in a soap opera. If you include soaps there are two main contenders - William Roache, who's been playing Ken Barlow in "Coronation Street" in the UK since 1960. Don Hastings has been playing Robert Hughes in US soap "As the World Turns" since 1960 as well.