Beloved Boy Meets World star William Daniels looked unrecognizable as he celebrated his 99th birthday with a sweet message to his fans.
The actor, who turns 99 on Tuesday, took to Instagram on Monday evening to share a video in which he thanked his followers for keeping him 'fulfilled in his later years.'
Daniels famously starred as the strict but loving teacher George Feeny in Boy Meets World from 1993 until 2000. He is also known for portraying Dr Mark Craig in the 1980s soap opera St. Elsewhere.
But now, decades on, the former TV star certainly looks very different.
In the video, Daniels, who hasn't acted since 2020, explained that while he is no longer appearing on screen, he still enjoys connecting with fans.
'Over the years, I've enjoyed connecting with fans and friends through Cameo and at events. Thank you for keeping me young. Keep it up,' he said, before delivering his famous Boy Meets World line: 'Class dismissed.'
He added in the caption that he was 'taking a pause on long-distance travel' so he likely won't be at events anymore but fans could still buy videos from him on Cameo.
Cameo is a platform that allows people to purchase personalized clips from celebrities. Daniels charges $195 for his videos.
William Daniels famously starred as the strict but loving teacher George Feeny in Boy Meets World from 1993 until 2000. He is seen in the show with Ben Savage
The actor is also known for portraying Dr Mark Craig in the 1980s soap opera St.Elsewhere (seen)
'Hard to believe I'm turning 99 tomorrow! I'm so grateful that staying connected with my fans has been so fulfilling in my later years,' he wrote.
'While I'm taking a pause on long distance travel, I'm still available on Cameo! Link in bio.'
Many fans rushed to the comment section of the video to share their support for the acclaimed actor.
'We love you Mr Feeny,' one gushed, while another wrote: 'You are loved. Glad you're still here. Hope your day is amazing good sir. Thank you for all the great memories.'
'One of the GREATEST,' someone else added.
'Mr Feeny is the reason I became a teacher,' shared a different user. 'Thank you for playing that role so well and with so much love and passion!
'Without Mr Feeny, I don't know that I would have found my passion. I strive to push my students and inspire them the way MrFeeny did for us.'
'Protect Feeny at all costs,' read a fourth comment.
He looked unrecognizable as he celebrated his 99th birthday with a sweet message to his fans
In the video, Daniels, who hasn't acted since 2020, explained that while he is no longer appearing on screen, he still enjoys connecting with fans through Cameo
Daniels is pictured with the Boy Meets World cast
Daniels is married to actress and fellow Boy Meets World star Bonnie Bartlett (seen left together in St. Elsewhere and right recently)
Before starring in St. Elsewhere, Daniels had a booming career on Broadway, starring in a slew of shows including Life with Father, 1776, A Thousand Clowns, On a Clear Day You Can See Forever and A Little Night Music.
His other screen credits include The Graduate in 1967; the crime series Knight Rider in which he voiced the AI computer KITT; the movie adaptation of the Broadway musical 1776; the sitcom Captain Nice; Freebie and the Bean; and The Nancy Walker Show.
In 2014, he reprised his role as Mr Feeny in the Boy Meets World spinoff Girl Meets World.
Last year, at 98 years old, he appeared as a surprise guest on Dancing With the Stars.
As for his personal life, he is married to actress and fellow Boy Meets World star Bonnie Bartlett and the two are now the oldest living married couple in Hollywood.
The couple wed on June 30, 1951, and played one another's spouses on Boy Meets World and St. Elsewhere.
They welcomed a son together in 1961, but he tragically died 24 hours after she gave birth. They went on to adopt two sons.