John Stamos reveals the Olsen twins really passed on the 'Full House' spin-off because they don't think they're actresses

Every time John Stamos tells the story about his run-in with the Olsen twins over participating in Netflix's "Full House" spin-off, "Fuller House," he reveals more information.

If you didn't hear, Mary-Kate and Ashley Olsen were in talks to appear on the Netflix spin-off, but they fell through. In May of last year, John Stamos - who played the Olsens' character Michelle's uncle, Jesse, and serves as an executive producer on "Fuller House" - expressed his disappointment in the 28-year-olds for not doing the show. After reports of a feud between them, Stamos said he understood their decision not to participate in the series and all was good with the twins once more.

There's a bit more to the story. Stamos appeared on Monday's episode of Howard Stern's SiriusXM radio show and revealed that the Olsens passed on the show not only because they're dedicated to their various fashion businesses, but the acting bug's bite has apparently worn off.

"They were very, very sweet. They seemed very into it," Stamos said. "They just were afraid of acting. They haven't acted. They don't consider themselves actresses."

Stamos then offered to do something over the phone with the Olsens at their homes in New York, but the women passed. "It just wasn't for them," Stamos said.

It's interesting that the women no longer view themselves as actresses. In their early years, they became millionaires by starring in dozens of films and children's videos. But it has been nearly 12 years since the Olsen twins' last major project together, 2004's "New York Minute," although both have acted individually since then. 

Fans will get a bit of Michelle despite the Olsens not participating. "Fuller House" decided to go forward with the phone call to explain Michelle Tanner's absence. On the show, the characters will prank-call Michelle by saying her famous catchphrase, "You got it, dude!"

"Fuller House" finds oldest daughter D.J. Tanner (Candace Cameron Bure) repeating history after becoming recently widowed and with two sons. Sister Stephanie (Jodie Sweetin) and best friend Kimmy (Andrea Barber) move in to help D.J.

Stamos, Bob Saget, Lori Loughlin, and Dave Coulier also reprise their roles for the spin-off. The 13-episode first season is set to debut in February.

Listen to Stamos explain the back-and-forth with the Olsen twins on Stern's show below: