She is voiced by Frances McDormand.
About Momma Ida
Momma Ida is a loving, quick-witted, smart, motherly, kind-hearted and caring wife and mother. She is also a hard worker with a lot of love for family.
She also seemed to be angry when she tells Buck to "get back to work". After Buck bullied Arlo, Ida is present with her husband and Libby, when her husband scolds Buck.
She also had an emotional personality after the death of her husband.
She didn't appear in the rest of the scenes until Arlo reunited with her, Libby and Buck.
- Momma Ida is the third Pixar character to lose their spouse, the second being Carl Fredricksen and the first being Marlin.