Mayor Bill de Blasio and Police Commissioner James O'Neill marched in the St. Patrick's Day Parade on Saturday.
The actor is the Dublin parade's first global guest of honour and has been invited to watch the festivities from the Presidential stand.
Bands, Irish dancers, floats and family clans entertained the large crowds. John Patrick Sullivan has been doing the honors for about 30 years, but turned over the duties to Luke Dowdell of Spencerport this year.
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The parade's organizers were once involved in annual fights over whether to exclude openly gay groups from the march.
National Guard Infantry members of 1-69 Bravo Company lined up before the start of the St. Patrick's Day Parade on Saturday.
A Spider-Man actor pretends to shoot webs at the bystanders during the St. Patrick's Day parade on March 17, 2018. The parade itself starts at 11 a.m. and typically lasts for almost six hours, taking an estimated 150,000 marchers on a 1.4 mile route past Central Park, St. Patrick's Cathedral and Trump Tower. The parade featured many other Disney characters, like Ariel the mermaid, and Princess Belle.