- Name: 23 Seth Martineau
- Nationality: —
- Position: D
- Shot: Left
- DOB: 03/27/2004
- Height: 6-4
- Weight: 225
- Hometown: Essex, ONT
- 2019-20 Team: Sun County Panthers U16
- 2018-19 Team: Sun County Panthers U14
- 2017-18 Team: Windsor Jr. Spitfires U13
- CHL Status: 2020 (OHL)
- USHL Status: 2020
- NHL Draft Eligible: 2022