The Walter boys you’re asking about are the characters from the Netflix series and book My Life With the Walter Boys , and the show gives them fairly clear in-universe ages across Seasons 1 and 2.

Below is a quick, reader-friendly breakdown of how old the Walter boys are meant to be in the series (not the actors’ real ages).

Main Walter brothers’ ages

  • Will Walter – Oldest brother. He’s in his mid‑20s: introduced around 25 and turns 26 by Season 2.
  • Cole Walter – One of the “older teen” brothers, a senior in high school. He starts at 16 and is 17 in Season 2.
  • Danny Walter – Cole’s fraternal twin, also a senior; he’s also 16 in Season 1 and 17 in Season 2.
  • Alex Walter – A year below the twins in school and the same grade as Jackie. He’s 15 at the start and 16 in Season 2.
  • Nathan Walter – Younger teen brother. He’s 14 in Season 1 and 15 in Season 2.
  • Jordan Walter – Early‑teen middle schooler, often seen with his camera. He goes from 12 to 13 across the two seasons.
  • Parker Walter – The only daughter in the main Walter household; she’s 9 in Season 1 and 10 in Season 2.
  • Benny Walter – Youngest Walter child; he’s 5 at the beginning and 6 by Season 2.

Ages as a quick HTML table

html

<table>
  <thead>
    <tr>
      <th>Character</th>
      <th>Age – Season 1</th>
      <th>Age – Season 2</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Will Walter</td>
      <td>25 [web:3]</td>
      <td>26 [web:3]</td>
      <td>Eldest sibling; engaged then married.</td>
    </tr>
    <tr>
      <td>Cole Walter</td>
      <td>16 [web:1][web:3]</td>
      <td>17 [web:1][web:3]</td>
      <td>Senior, football star, one of Jackie’s love interests.</td>
    </tr>
    <tr>
      <td>Danny Walter</td>
      <td>16 [web:1][web:3]</td>
      <td>17 [web:1][web:3]</td>
      <td>Cole’s twin, more reserved, into acting.</td>
    </tr>
    <tr>
      <td>Alex Walter</td>
      <td>15 [web:1][web:3]</td>
      <td>16 [web:1][web:3]</td>
      <td>Same grade as Jackie, later trains as a bull rider.</td>
    </tr>
    <tr>
      <td>Nathan Walter</td>
      <td>14 [web:1][web:3]</td>
      <td>15 [web:3]</td>
      <td>Freshman then sophomore; close to Jackie early on.</td>
    </tr>
    <tr>
      <td>Jordan Walter</td>
      <td>12 [web:1][web:3]</td>
      <td>13 [web:3]</td>
      <td>Middle schooler, often with a camera and pet snake.</td>
    </tr>
    <tr>
      <td>Parker Walter</td>
      <td>9 [web:1][web:3]</td>
      <td>10 [web:3]</td>
      <td>Only daughter, elementary school age.</td>
    </tr>
    <tr>
      <td>Benny Walter</td>
      <td>5 [web:3][web:9]</td>
      <td>6 [web:3][web:9]</td>
      <td>Youngest; energetic and prank‑loving.</td>
    </tr>
  </tbody>
</table>

A bit of quick context

The creators keep almost all of the Walter kids in or around school age , which fuels the show’s mix of high‑school drama, sibling chaos, and romance. Fans often joke in forum discussions that some of the actors look older than their scripted ages, especially the oldest brother Will, which has become a running topic in fandom threads.

TL;DR: If you’re wondering “how old are the Walter boys,” they range from about 5–6 years old (Benny) up to about 25–26 (Will) , with Cole, Danny, Alex, Nathan, and Jordan filling in the teen years in between.

Information gathered from public forums or data available on the internet and portrayed here.