Sean Gregory Palmer (born January 23, 1973) is an American stage and screen actor, singer, and dancer. Palmer's most recognizable role on television is that of Stanford Blatch's boyfriend, Marcus, on the HBO series Sex and the City.
Palmer played Prince Eric in the stage version of The Little Mermaid, which began on January 10, 2008.
Palmer can be heard on the Original Broadway Cast recording of The Little Mermaid and on the soundtrack of the motion picture Easy Virtue. In 2010, they appeared in a one-night only concert semi staged reading of Evening Primrose by Stephen Sondheim.
In October 2021, Palmer came out as non-binary, and stated their preference for they/them pronouns.