- Name: Marcus Gretz
- Nationality: —
- Position: D
- Shot: Left
- DOB: 11/22/2001
- Height: 6-3
- Weight: 215
- Hometown: West Bloomfield, MI
- 2018-19 Team:
- 2017-18 Team: Flint (OHL)
- CHL Status: 2017 Flint (OHL) 2/23
- NCAA Status: Ohio State (B-10)
- NHL Draft Eligible: 2020