Mickey Rooney and George S. Irving are the only actors to reprise their roles from The Year Without a Santa Claus (1974) as Santa Claus and the Heat Miser respectively.
As of 2022, A Miser Brothers' Christmas (2008) is the final title in any way associated with Rankin/Bass Productions. The production company was already defunct when this movie was produced. The Miser Brothers were based on original characters created by William J. Keenan.
The Miser Brothers were first introduced as characters in the 1974 television movie The Year Without a Santa Claus (1974) starring Mickey Rooney and Shirley Booth.