The HBO drama "True Blood" remains cable's most inclusive series, featuring six LGBT characters.
On broadcast TV, male characters (64 percent) continue to outweigh female characters (36 percent, including the transgender character Unique on "Glee").
Compared with last year, African-American representation has grown from 9.9 percent to 12 percent, while Hispanic representation has decreased from 5.6 percent to 4.1 percent.
"It is vital for networks to weave complex and diverse story lines of LGBT people in the different programs they air," said GLAAD President Herndon Graddick. "More and more Americans have come to accept their LGBT family members, friends, co-workers and peers, and as audiences tune into their favorite programs, they expect to see the same diversity of people they encounter in their daily lives."
ABC is a unit of The Walt Disney Co.; CBS and Showtime are divisions of CBS Corp.; NBC and Syfy are part of Comcast Corp.; Fox and FX are units of News Corp.; HBO is a unit of Time Warner Inc.; MTV and TeenNick are part of Viacom Inc.'s MTV Networks.