MARGA Gomez has appeared on the big screen opposite Sharon Stone, cut it up with Tracey Ullman on HBO and will soon take the stage for a one-woman show off-Broadway,but there ‘s one thing this Cuban/Puerto Rican

dynamo can ‘t do: “I belong to a very small minority of Latinas who can not dance,” she confesses.. “It is so sad.I ‘m worse than Gloria Estefan.”

But the Washington Heights-born comedienne/actress/playwright makes up for that with her brazen brand of

autobiographical comedy.In “Los Big Names,” which opens Sunday,Gomez uses her gifts of impersonation and storytelling to compare her life growing up with showbiz parents with her ill-fated experiment in Hollywood (she now lives in Williamsburg,Brooklyn).

The piece was penned as an homage to Willy Chevalier,Gomez ‘s Cuban-born dad who was a well-known emcee and comedian at the Apollo Theater ‘s Spanish variety shows,and her mother,Puerto Rican dancer Margarita.

Gomez left New York at age 19 for San Francisco,where the openly gay comedian began doing stand-up in area clubs.Robin Williams saw her perform and invited her to appear on HBO ‘s Comedy Relief.

Eventually,Gomez moved to LA and landed a role playing Jane Edmunds,a military computer expert in Barry Levinson ‘s 1998 film “Sphere,” starring Dustin Hoffman,Sharon Stone,Samuel L. Jackson and Queen Latifah.

“There weren ‘t many human beings in the film,just a lot of jellyfish and water.So even though I didn ‘t have many lines,I got big placement in the credits.But I had my suspicions it would flop,” laughs the wisecracker.

“I mean,how could someone that looks like me be named ‘Jane Edmunds?'”

“Los Big Names,47th Street Theater,304 West 47th St.,between Eighth and Ninth avenues.

April 9-May 14.$45.(212)239-6200.