Tim Allen was ‘a bitch’ on ‘Santa Clauses’ set, co-star Casey Wilson claims

Santa Claus may be on the naughty list this Christmas.

Casey Wilson, who appeared alongside Tim Allen for the pilot episode of Disney+’s “The Santa Clauses” series, claims working with him was “truly single worst experience I’ve ever had with a co-star ever.”

The “Saturday Night Live” star spoke to Variety on Wednesday about how the “Home Improvement” alum allegedly wasn’t exactly in the holiday spirit during filming.

“Tim Allen was such a b—h,” she bluntly claimed, explaining she “buried this” information for over a year since the series’ release because her friend was a producer on the project and her kids “loved the movies.”

The series was a continuation of Allen’s classic “Santa Clause” film trilogy. Wilson portrayed Adult Sarah in the series — a grown-up version of the girl who gave Santa soy milk in the first flick.

Wilson deemed Allen somewhat of a diva after she claimed he became flustered during filming and oddly approached production about their interaction.

“So I’m in a scene. It’s just me and Tim Allen and I’m supposed to throw things at him,” Wilson recalled. remembered. I think he’s a burglar. So he’s coming down the chimney, obviously as Santa, and I am woken up thinking there’s an intruder, basically like a home invasion scene. So I’m throwing things at him.”

“[He] goes over to the producer who is standing four feet from me and goes, and I hear him, he goes, ‘You gotta tell her to stop stepping on my lines.’ The producer turns to me with horror on his face and has to walk one foot to me and he goes, ‘Um, Tim would ask that you stop stepping on his lines.’”

Wilson also alleged that the “Toy Story” actor was “was so f —king rude” once he was done filming his scenes, and that “everybody was walking on eggshells” around him and “just looked frantic.”

“It’s the end, and Tim Allen goes, ‘Leaving!,’ takes his Santa cape, picks it up and drops it on the floor and walks out,” Wilson said. “And they hustle in his stand-in; lovely man, who was much nicer to act against. People are scurrying to pick up his velvet Santa coat.”

She continued, “He’s a b—-h. And this is the best… I will not say who said this. This was someone that I do not know, perhaps in the crew. [He or she] breezes past me and just goes, ‘You’re seeing him on a good day.‘”

The Post has contacted a rep for Allen for comment.

In a joint interview with The Post last month, Allen’s daughter, Elizabeth Allen-Dick, roasted her dad because “he won’t watch any other Santa Claus movies other than himself.”

“I can’t watch another Santa Claus movie,” Allen eventually admitted. “Especially when they’re bad Santas. I know there are people that like the ugly Santa movies but sometimes I’m like, ‘Eh, I don’t know if I like bad Santas.’ You know, dressed up with knives and stabbing. I don’t like that.”