The Park Keeper

The Park Keeper is a minor character portrayed by Steve Nicolson in the film Mary Poppins Returns as a worker at the park who doesn't want anyone walking on the "Keep off the Grass" areas.

Background
Steve Nicolson makes his Disney feature film debut as the Park Keeper in the film Mary Poppins Returns. As an actor, Steve Nicolson is known for his film performances in K-19: The Widowmaker (2002), Criminal (2016) and Johnny English (2003).