The family-friendly service will also include Fox films such as The Sound of Music and Malcolm in the Middle following the sale of 20th Century Fox to Walt Disney. Of the 9.6 million new paid subscribers, 1.74 million were in the US and 7.86 million were from around the world; the user growth represented a 16 percent year-over-year increase.
He added that Netflix is increasingly a "magnet for talent" and that there are "no other competing platforms that approach Netflix's reach".
But the company is less optimistic about growth for the second quarter.
Netflix is downplaying expectations for the 2nd quarter of 2019 though.
Chief Executive Officer Reed Hastings compared the performance to a flawless tee shot in golf.
"With a combined market cap of around $2.2 trillion, those three bruisers aren't to be messed with", Hargreaves Lansdown equity analyst George Salmon said. Despite the impending threat of Disney's new streaming service, Netflix will remain the dominant force in the industry for the foreseeable future.
Netflix also shed some light on the audience figures for Umbrella Academy, one of its highest profile original releases during the quarter. This is about half of the cost of Netflix monthly.
For $6.99 (£5.36) a month, Disney subscribers will have access to a library of movies and films spanning five categories; Disney, Pixar, Marvel, Star Wars and National Geographic. Apple Inc., AT&T Inc. and Comcast Corp. are also planning their own offerings.
"The idea that consumers will choose Disney+ over Netflix seems unrealistic, unless a given consumer's use case for having Netflix has been limited to watching Disney films", Deutsche Bank analyst Bryan Kraft wrote in a note.
Netflix, however, appears to not be anxious about this tumultuous time. Its streaming service has grown at the same time that competitors HBO and Showtime have added customers. "But that doesn't necessarily mean that subscribers will cancel Netflix".
The company has produced a number of critically acclaimed films and series including The Crown and the Oscar-nominated Roma.
Netflix said its investments in India are beginning to bear fruit as well. It is the largest potential market given that Netflix isn't in China, and fellow online video giant YouTube has had great success. Netflix's chief content officer Ted Sarandos said they were "super encouraged" and "got a lot of viewing in India" for Love Per Square Foot and Sacred Games.
"If Netflix can justify its own value, it can continue to drive the prices higher and I think right now, they provide enough content to certainly justify a higher price", Hargreeaves said.