Mapa got his professional break when he was cast to understudy, and then replace
B. D. Wong in the
Broadway production of
M. Butterfly. Mapa later played the role on the national tour. Mapa would return to Broadway in an adaptation of ''
L'Hôtel du libre échange by Georges Feydeau and Maurice Desvallières, re-titled, "A Little Hotel on the Side" in 1992. The next year, Mapa was back on Broadway in a Stratford Festival inspired production of Timon of Athens. Off-Broadway, Mapa earned a nomination at the 2001 Lucille Lortel Awards for his performance in the Jessica Hagedorn play Dogeaters'', and was featured in every play in the "Whitelands" trilogy, a series of plays about gay Asian men written by
Chay Yew; "Porcelain" (1992), "A Language of Their Own" (1995), and "Wonderland" (1999). On television, he has made guest appearances on a wide variety of programs, including
The Jamie Foxx Show,
Roseanne,
Seinfeld,
NYPD Blue,
Friends,
Murder One and
Dharma & Greg. He had a supporting role in the short-lived 2001 comedy
Some of My Best Friends. He played Adam Benet in the
UPN comedy
Half & Half. He wrote and performed in a one-man play titled "I Remember Mapa", about his experiences growing up gay in San Francisco. Mapa was a featured performer on the
Logo original
stand-up comedy series
Wisecrack. In 2006 appeared as Vern, Gabrielle's personal shopper, on the TV series
Desperate Housewives. He had a recurring role on the 2006–2010 series
Ugly Betty, as Suzuki St. Pierre, the flamboyant host of a fictional gossip and news show (who, it is revealed, is actually a straight—and married—journalist named Byron Wu). He performed the voice of Rick's flamboyantly gay uncle Bakla on the 2007-2009 animated series
Rick & Steve: The Happiest Gay Couple in All the World. Mapa's film credits include parts in
Bright Lights, Big City,
Playing by Heart,
Connie and Carla and
Marley & Me, among others. He was featured in the movies
Super Sweet 16: The Movie and
Tru Loved. He also played as a stylist in the movie ''
You Don't Mess with the Zohan''. In 2008, Mapa hosted Logo's
Transamerican Love Story, a reality dating program starring transgender woman
Calpernia Addams selecting from among eight potential suitors. In the same year, he also hosted
Dancing With Dogs on
Animal Planet. Mapa also performed on the 2009
Atlantis Freedom Caribbean Cruise headlining in the Arcadia Theater. In 2010, Mapa became one of the co-hosts of Logo's
The Gossip Queens, a daily series where he helps present celebrity gossip. In his act, he jokes that he is sometimes confused with
Rex Lee, another flamboyant Asian gay man who plays Lloyd on the
HBO dramedy Entourage. In 2015, Mapa appeared on
Candidly Nicole with
Nicole Richie. Mapa has appeared in various iterations of the reality competition series ''
RuPaul's Drag Race and its spin-off shows. He first appeared in 2010 as a guest judge on the second season for the first ever Snatch Game challenge. In 2011 he appeared as a guest judge on the second season of the spin-off series RuPaul's Drag U'' for the Suddenly Single challenge. In 2013 he performed in drag as a warm-up act for the live finale of the show's
fifth season. He returned in 2021 as a special guest for the Charisma, Uniqueness, Nerve and Talent Monologues challenge on the
sixth season of ''
RuPaul's Drag Race All Stars. His next appearance was in 2022 as a guest judge for the "60s Girl Groups" episode on the fourteenth season of RuPaul's Drag Race
. The same year Mapa began hosting, alongside comedian Loni Love, the official RuPaul's Drag Race
podcast, Squirrel Friends
, in collaboration with iHeartRadio. For a brief period in 2021 he had previously hosted a previous iteration of the podcast, simply entitled The Official RuPaul's Drag Race Podcast
, alongside Canada's Drag Race season 1 winner Priyanka. His most recent appearance was in 2023 as a special guest for the Carson Kressley, This is Your Gay Life challenge on the eighth season of RuPaul's Drag Race All Stars''. In 2023, Mapa appeared in the Lifetime original film, ''
Ladies of the '80s: A Divas Christmas'', starring
Loni Anderson,
Morgan Fairchild,
Linda Gray,
Donna Mills, and
Nicollette Sheridan. ==Personal life==