“I love my cast mates and will continue to support Disney, but I have outgrown the channel and feel its time to move forward in my career,” he added.

The news came at the end of a week in which Mr. Paul, 20, attracted negative attention when a local news station aired a story about him feuding with some of his West Hollywood neighbors.

Neither Disney nor Mr. Paul referred to that conflict in their comments.

Mr. Paul, who has more than 8.8 million subscribers to his YouTube channel, has cultivated a roguish public image in his videos. They have shown him trying to stage a sleepover in the White House and building a trampoline obstacle course. After the local news report last week, he posted a prank video in an attempt to fool his viewers into thinking he got arrested.

A spokesman for Mr. Paul, Brooks Butterfield, said that “Bizaardvark” had been a significant time commitment, and that before the local news clip had caused such a stir, Mr. Paul had already requested more time away from the show.