Editing Mickey Mouse universe (section)

=== Mortimer Mouse ===
'''Mortimer Mouse''' – not to be confused with Minnie Mouse's uncle also named [[#Uncle Mortimer|Mortimer Mouse]] – is introduced in the 1936 cartoon short ''[[Mickey's Rival]]'', as Mickey's competitor for Minnie's affections. The year ''Mickey's Rival'' was produced, Floyd Gottfredson also used the character as an antagonist in one of the comic strip's storylines. In the comics, this Mortimer was briefly renamed Montmorency Rodent (pronounced "Ro-Dawn"), in an attempt to differentiate him from the pre-existing uncle, but the new name did not stick. Mickey's rival was once again called Mortimer in later comics – and in the animated series ''[[Mickey Mouse Works]]'' and ''[[House of Mouse]]'', where he used the [[catchphrase]], "Ha-cha-cha!".

In ''House of Mouse'' and ''Mickey Mouse Works'', Mortimer as Mickey's rival is voiced by [[Maurice LaMarche]], doing an exaggerated impersonation of [[Jon Lovitz]].{{Citation needed|date=November 2021}} As Minnie's boss in ''[[Mickey's Once Upon a Christmas]]'', he was voiced by [[Jeff Bennett (voice actor)|Jeff Bennett]]. Mortimer Mouse also appeared in a non-speaking cameo in the ''[[Mickey Mouse Clubhouse]]'' episode ''Minnie's Birthday'', sitting beneath a tree, playing a guitar. He later appeared in the ''Mickey Mouse Clubhouse'' episode "Super Adventure" as a villain where he intends to shrink the clubhouse. Bennett reprised his role as Mortimer in the 2018 ''[[Mickey Mouse (TV series)|Mickey Mouse]]'' short "A Pete Scorned". He also appeared in ''[[Mickey and the Roadster Racers]]'' as Morty McCool.