Confirmed ages/ages I think everyone is and the actors/actresses age. I'll guess ages for first appearances.The show started in 2018, so I'll use that year unless stated. the time gaps between seasons could be another post but Season 5 Perry asks John if he'll be running again in 2026 so we can put season 5 in 2022. Or else I'd be wild guessing the years.
Confirmed ages on show. Characters mentioning their age or documentation.
John, 63 born in 1955. Kevin Costner 1955. I feel like he was around 60 when the show started. I do think he said he was 62 or 64 in Season 2 so maybe a few years younger.
Jamie, 39. birth certificate says 1979. Wes Bentley 1978. I put him around this age. but his age is mentioned as 36, 38, 40, and 45 over the seasons.
Beth's, 34. drivers license says September 1984. Kelly Reilly 1977. (I feel any where from 82-84 would be accurate) ages mentioned are 33, 34 and 40. If I'm remembering correctly she's supposed to be 13 when the mother dies in March 97 but that would only make her 12, also it's implied that she got pregnant soon after Rip came to the farm in summer of 97 and had the abortion in late August so she would have only been 12 almost 13.
Kayce, 28. date of birth off his driver's licence is stated as 1990. Luke Grimes 1984. I would have guessed his age at 26 at the start of the show. Age is slightly off with what has been said about how old he was when Tate was born. Said they were 18 when Monica got pregnant making Tate 9-10 in Season 1 which he wasn't.
Carter is 14 in Season 4. Finn Little 2006. Season 5 is in 2022 making him turn 16 sometime that year, we don't know when his birthday is but it sounds about right.
Lloyd is 58 in season 5 so should be born in 1964. Forrie J Smith 1959.
Non confirmed ages.
Rip, around 35 so born around 1982. Cole Hauser 1975. I thought that Rip came to the ranch when he was 15 and that was in the summer of 1997. I would age him around that from the flashbacks.
Monica, 28 supposedly the same as Kayce so 1990. Kelsey Asbille 1991. Same problem as Kayce if they're the same age, I'll put her as up to 3 years younger than Kayce. Putting Tate's birth in 2010-11 making him 7-8 in 2018.
Tate, 7 or 8. Brecken Merrill 2008. Looked age appropriate till season 5, now he looks 2 or 3 years older.
Jimmy, I'd say between 25-28, 1990-93. Jefferson White 1989. His hospital bracelet gave a DOB of 1989. I don't count this as confirmed because in alot of shows they use the actors real birthday on the bracelets.
Rainwater, in his 50's. Gill Birmingham 1953.
Walker 32-35, 1983-1986. Ryan Bingham 1981.
Ryan between 30 and 35, 1983-1988. Ian Bohen 1976.
Colby 30, 1988. Denim Richards 1988.
Jake 35-40, 1978-1983. Jake Ream no age given.
Ethan, 35, 1983. Ethan Lee no age given.
Dan Jenkins, 55, 1963. Danny Huston 1962.
Mia, 25. 1993-94 depending on how much time past between seasons. Seems like no more than a couple of months had past between 1 and 2. Eden Brolin 1993.
Laramie, someone said she wasn't even 25 yet in season 2 so 23, 1995-96. Hassie Harrison 1990.
Summer 35-40 maybe up to 45 in 2022. 1977-1983. Piper Perabo 1976. John says to the judge that he can't put her away for 15 years, she'll be to old to start a family. So I'm guessing that they're going with under 40.
Teeter, 32 for first appearances so maybe 34 in 2022. 1988. Jen Ladon 1983.
Lynelle Perry, 55. 1963. Wendy Moniz 1969.
Mo, 50. 1968. Mo Brings Plenty 1969.
Travis, 45. 1973. Taylor Sheridan 1969.
Abby, 25 in 2022. 1997. Lainey Wilson 1992.