Marschke was born in Bundaberg, Queensland and played his junior rugby league for the Across The Waves Tigers and attended St Luke's Anglican School and Shalom College before being signed by the Sydney Roosters.

[11] In 2021, Marschke joined North Sydney, the Roosters' NSW Cup feeder club.

[12] In Round 4 of the 2021 NRL season, Marschke was called up to the Sydney Roosters first grade side, making his debut in their 32–12 win over the New Zealand Warriors.

Marschke instead featured for the clubs NSW Cup team North Sydney playing 23 games throughout the year.

[15] Marschke spent the entire 2023 season playing for North Sydney in the NSW Cup.