\"Happy birthday Dad! You are a living legend and your entire family sends you all the love in their hearts! #KirkDouglas #103\" he wrote alongside a photo of them.

For Kirk's 102nd birthday last year, Michael told \"Good Morning America\" that his father was doing \"unbelievable.\"

\"Our only problem is he's discovered FaceTime,\" Douglas shared.

\"But he doesn't have the three-hour time change worked out -- from west coast, we live on the east coast, we're early guys. We have kids, so 10:30 we're in bed. We get a 'Where are you?' 'I'm in bed, dad,'\" he said with a laugh.

View this post on Instagram

A post shared by Michael Douglas (@michaelkirkdouglas) on Dec 9, 2019 at 10:00am PST

\"He's fantastic. I just can't get over it. His memory is all there,\" Douglas continued. \"He's in good health. He's got a walker and a wheelchair.\"

Michael's wife, actress Catherine Zeta-Jones, also offered her best wishes to Kirk on Monday.

\"This guy on my knee, is 103!!!!!Happy Birthday Pappy!!! I love you with all my heart. 😘❤️\" she posted with a photo of herself with Kirk.

View this post on Instagram

A post shared by Catherine Zeta-Jones (@catherinezetajones) on Dec 9, 2019 at 2:03am PST

She also recently shared a movie clip of Kirk alongside his late co-star Lana Turner in 1952 drama \"The Bad and the Beautiful.\"

\"My Father in law, with my fav Lana Turner!! Have to post!!!! Love you Pappy💏The Bad and the Beautiful!!\" she captioned the clip.

View this post on Instagram

My Father in law, with my fav Lana Turner!! Have to post!!!! Love you Pappy💏The Bad and the Beautiful!!(1952)

A post shared by Catherine Zeta-Jones (@catherinezetajones) on Nov 12, 2019 at 2:38am PST

Michael Douglas' son Cameron called his grandfather \"a gift to the world; a guiding light and source of inspiration\" in a birthday message.

View this post on Instagram

A post shared by Cameron Douglas (@cameronmorrelldouglas) on Dec 8, 2019 at 3:00pm PST

\"I Love you. #103 to #infinity,\" he captioned his post.

","canonicalUrl":"https://abcnews.com/GMA/Culture/michael-douglas-wishes-father-kirk-happy-103rd-birthday/story?id=67604068","legacySlug":"/culture/story/michael-douglas-wishes-father-kirk-happy-103rd-birthday-67604068","noIndexNoFollow":false},"publishTime":"19:27","publishDate":"12-09-2019","updatedTime":"18:13","updatedDate":"12-10-2019","socialImage":{"alt":"Cameron Douglas, Kirk Douglas and Michael Douglas attend the ceremony honoring Michael Douglas with star on the Hollywood Walk of Fame, Nov. 06, 2018, in Hollywood, Calif.","credit":"Axelle/bauer-griffin/FilmMagic/Getty Images, FILE","ratio":"16x9","url":"https://s.abcnews.com/images/GMA/kirk-douglas-file-gty-jef-191209_hpMain_16x9_1600.jpg","width":992,"height":558},"datePublished":"12/9/2019 19:27:00 GMT","video":{"live":false,"id":67604068,"headline":"Kirk Douglas celebrates 103rd birthday","mediaAssetTitle":"KIRK DOUGLAS BIRTHDAY","description":"The actor's son Michael Douglas shared a birthday message for him. ","duration":"2:43","posterImg":{"url":"https://s.abcnews.com/images/GMA/default-img-undefined.png","width":608,"height":342},"video":{"feed":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2017/12/171209_abc_archives_december_kirkdouglas_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8"},"playlist":["67599157","67595680","66369320"]},"relatedItems":[{"contentType":"story","date":"December 9, 2019","headline":"Taylor Swift, Jennifer Lopez and more react to Golden Globe nominations","section":"culture","slug":"/culture/story/taylor-swift-emma-thompson-react-golden-globe-nominations-67599157","id":67599157,"image":{"alt":"Taylor Swift, Jennifer Lopez and more react to Golden Globe nominations","url":"https://s.abcnews.com/images/GMA/taylor-swift-gg-ht-aa-191209_hpMain_4x3t_240.jpg","credit":"Taylor Swift/Instagram","ratio":"1x1"}},{"contentType":"story","date":"December 9, 2019","headline":"'Little Women' cast have high fashion moment at world premiere","section":"style","slug":"/style/story/women-cast-high-fashion-moment-world-premiere-67595680","id":67595680,"image":{"alt":"'Little Women' cast have high fashion moment at world premiere","url":"https://s.abcnews.com/images/GMA/little-women-cast5-ap-ps-191209_hpMain_4x3t_240.jpg","credit":"Evan Agostini/Invision via AP","ratio":"1x1"}},{"contentType":"story","date":"October 22, 2019","headline":"The 'heartbreaking' words Michael Douglas told his son amid drug addiction","section":"culture","slug":"/culture/story/cameron-douglas-opens-drug-addiction-prison-time-66369320","id":66369320,"image":{"alt":"The 'heartbreaking' words Michael Douglas told his son amid drug addiction","url":"https://s.abcnews.com/images/US/cameron-douglas-diane-sawyer-bugged-abc-jc-191021_hpMain_4x3t_240.jpg","credit":"ABC News","ratio":"1x1"}}],"relatedContentSection":"news","schemaContent":{"name":"Kirk Douglas celebrates 103rd birthday","description":"The actor's son Michael Douglas shared a birthday message for him. ","duration":"2:43","uploadDate":"12-09-2019","publication":"12-09-2019","images":"https://s.abcnews.com/images/GMA/default-img-undefined.png","url":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2017/12/171209_abc_archives_december_kirkdouglas_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","contentUrl":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2017/12/171209_abc_archives_december_kirkdouglas_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","link":"https://www.goodmorningamerica.com/culture/story/michael-douglas-wishes-father-kirk-happy-103rd-birthday-67604068"}},"playlist":[{"id":"132054443","contentType":"story","section":"news"},{"id":"132054798","contentType":"story","section":"news"},{"id":"132033010","contentType":"story","section":"news"},{"id":"131912713","contentType":"story","section":"news"},{"id":"131830583","contentType":"story","section":"news"},{"id":"131834976","contentType":"story","section":"news"},{"id":"131554765","contentType":"story","section":"news"},{"id":"131554815","contentType":"story","section":"news"},{"id":"131543053","contentType":"story","section":"news"},{"id":"131432442","contentType":"story","section":"news"},{"id":"131121474","contentType":"story","section":"news"},{"id":"131247079","contentType":"story","section":"news"},{"id":"131228784","contentType":"story","section":"news"},{"id":"131178806","contentType":"story","section":"news"},{"id":"131142257","contentType":"story","section":"news"},{"id":"131046664","contentType":"story","section":"news"},{"id":"131048076","contentType":"story","section":"news"},{"id":"131033212","contentType":"story","section":"news"},{"id":"130999943","contentType":"story","section":"news"},{"id":"130971027","contentType":"story","section":"news"}],"kvps":{"pgtyp":"article","lang":"en","sp":"goodmorningamerica","programmatic":"true","bundleId":"com.abcnews"}},"analytics":{"accountID":"wdgnewwdgnewgmaweb","ns":"gma","pageName":"gma:culture:video","pageType":"video","globalSpecVersion":"v1.08","siteDifferentiator":"gma:site","tagID":"g_page01","userABCookie":"0","section":"culture","title":"Kirk Douglas celebrates 103rd birthday","pubTime":"14:27","pubDate":"12-09-2019","modTime":"13:13","modDate":"12-10-2019","taxonomyTags":"none","id":67604068,"editorialOtherSubjects":"","wordCount":"none","columns":"none","authors":"","authorsUnit":"none","authorsBureau":"none","subBrand":"Good Morning America","provider":"Good Morning America","videoName":"Kirk Douglas celebrates 103rd birthday","mediaAssetTitle":"KIRK DOUGLAS BIRTHDAY","videoId":67604068,"mediaOnPage":"video","legacySlug":"/culture/story/michael-douglas-wishes-father-kirk-happy-103rd-birthday-67604068"},"taboola":{}},"request":{"headers":{},"httpVersion":"1.1","method":"GET","url":"/video/67604068","vary":{"host":"www.goodmorningamerica.com","cached":true,"path":"/video/67604068","forwarded-proto":"https","device":"desktop","userab":"0"}},"viewport":{"width":1260,"height":0},"user":{}};