Matilda
Eyes: Black
Hair: Blind
Race: Chicken
Legal status: U.S. citizen
Marital Status: Single
Base of operations: Duckburg
Story: Matilda is Gyro Gearloose's girlfriend.
Continuity: Disney
Company: Disney
Gold Key
First app.: Comics: Walt Disney's Comics and Stories #310 (1966)Creator(s): Vic Lockman
Tony Strobl
Country of origin: USA 
Background notes: Matilda is one of the rather obscure characters in the Disney universe. Her first appearance was in Walt Disney's Comics and Stories #310 from 1966, as a love interest for Gyro Gearloose. Most likely she was not supposed to be used again, as Lockman only used her in that story. Over the years she has been used 13 times in stories, last record being from 1992, and the remaining stories have been produced in Brazil from 1973 onward.
There are no records of the character being transferred to other media, and considering how little the character has been used, it is unlikely she has been transferred to other media.