Three years ago, Chad McNamara was a struggling actor just finishing a national tour in the chorus of “Mamma Mia!” Now, he’s the one at center stage — albeit in baby-blue makeup and a fuzzy, ...

More than one adult asked that question as a trio of sort-of clowns paraded through a Manhattan office building in full-on makeup and costumes one recent day. But anyone with preschoolers at home knew ...