WILL + GRACE star Megan Mullally claims she was dropped from a starring role in animated movie hit Finding Nemo, because she refused to copy her high-pitched voice from the TV comedy.

The actress - who plays squeaky socialite KAREN WALKER in the EMMY-winning series - revealed the scandal to American talk show host Wayne Brady.

Mullally, 45, claims movie bosses at Pixar assured her she wouldn't be required to use the same voice - but then tried to persuade her after she began reading the role.