At this time, his heart follows Boca Juniors football team.
But a very important thing which happened in 1944 conquers his humour and his heart...
He goes to watch a football match of the unbeatable team River Plate (named "La Máquina"-
"The Machine", Boca´s rival), against a small neighbourhood team in green t-shirts:
Ferro beats River by 3-1, and thanks to an unforgetable goal  scored by a Ferro player,
Mordillo becomes a fan of this "Caballito" team.

Professionaly, Mordillo works in illustration, comic strips and advertising.

Some of his works are published in "Peter Pan" magazine, by Editorial Codex.
There he draws the illustrations of the covers (later they would be drawn by another
great Argentine comic artist: the Uruguayan Alberto Breccia), and the comic strips
"Hociquito Peter" and "El Conejo Fosforito", with Aldo Camarotta´s script.

He also works in "Producciones Ubaldo Galuppo", an adversiting cartoons studio,
situated in 600, Hidalgo street, in Caballito neigbourhood. 

In this period he illustrates books of children stories.

(1955-1960)
THE PERU ADVENTURE
'There are some people who have stayed in the country and they are really talented. 
If you want to leave you'll have to be young; later, you'll have a family, you'll settle 
down and everything will be more difficult'.
Guillermo Mordillo, El Arca Magazine, 2000.
-A friend finds him a job in advertising in Lima, Peru.
Mordillo plans to work there for three months, but he stays for five years.

His departure is not connected with Juan Domingo Peron topple, who was
the Argentina´s president at that moment: it happened in 1955.
Mordillo was always an apolitical professional.

(1960-1963)
THE AMERICAN AVENTURE
'My great desire was to make cartoons.'
Guillermo Mordillo, El Arca Magazine, 2000.
-Following his old dream of making cartoons like Disney,
in 1960 he leaves Lima to go to New York. Mordillo has 28 years old.
He works for one year in the PARAMOUNT PICTURES studios, as an "in betweener"
(or "animation assistant": his job is to draw the intermediate pictures between
the key poses. Once those pictures are shot "frame by frame", they give the
optical effect of movement) in the serial "Popeye, the sailor".

That is not what he hopes, because "Disney method" is replaced by a "limited animation",
the production being deeply thought but not so careful as the quality.  

He leaves PARAMOUNT PICTURES and he devotes to draw congratulations cards.

(1963-1980)
HUMOURIST MORDILLO IS BORN
'When I arrived in Paris I was forced to create silent humour, I mean humour without words 
because I spoke French badly.'
Guillermo Mordillo, El Arca Magazine, 2000.
-Althought he has the "Green Card" (permission for working in USA) and is a well-off man,
Mordillo decides to have a try in Europe.
On August 26th, 1963, he arrives in Madrid. He stays there for some days,
but he does not like it very much because Spain is under Tenant Franco´s government.  

He decides to travel to France, planning to go to London.
He arrives in the "Light City" (Paris) in train. He stays in a small room,
without too many facilities or luxuries. He presents his "American works"
in a French publishing house, but they don´t accept him.
Without losing his hope, he presents himself in another publishing house:
he gets a job drawing more congratulations cards.
After three years, he decides to ask for a rise but they deny it
and he is even dismissed. One of his friends suggets him drawing
cartoons for the press. As he doesn´t speak French very well, 
he makes mute cartoons. 

His works become more famous as time goes by and he starts publishing in
different magazines, like "Paris Match". When he starts working for magazines, 
he starts using one of his strong points: colour in his work.
His characters are white so that they contrast with the colour of the background. 

This is how "Mordillo, the humourist", is born.

In Paris, Mordillo meets Amparo, his wife and they have
two children: Sebastian and Cecilia.
  

Mordillo looking at the Catalog of the fifth Tehran Cartoon Biennial

He just couldn't hide his Excitement in seeing the amount of good and skilled Cartoons
drawn by Iranian Cartoonists.

Between 1974 and 1975, some of his pages are published in Argentina, but his
name is mixed with the great deal (and quality) of artists.
One of those magazines is "Mengano", where he shares the bill with Quino, Oski,
Roberto Fontanarrosa, Carlos Trillo, Alejandro Dolina, etc.
The other magazine is "Media Suela", and there we see Mordillo with
Alberto Breccia, Patricia Breccia, Geno Díaz, Oski, Viuti, Maicas...

(1980-2001)
MORDILLO CONTEMPORÁNEO
'Perhaps the head is in Europe and the heart is here. I have a good test for this: let's suppose
 there is a football match between the Argentine team and the Spanish team...
 If I cheer for Argentina, it means the heart is here'.
Guillermo Mordillo, La Maga Magazine, 1992.
     -After getting his professional top and tired of Paris´s bad weather,
Mordillo emigrates to Spain. He moves to a house on a hill opposite the sea in
Palma de Mallorca. He is living there now.

His cartoons (with their notes about Ferro club and the "verdolagas" ideas) are published
in magazines all over the world, such as: Italy, France, England, Germany, Spain,
Portugal, Belgium, Russia, Greece and the rest of Europe; in Japan and different
places of Asia; Australia; USA, Canada, Mexico, Brazil and all Latin America.

In Argentina, his cartoons are published (since 1997) every Sunday
in the magazine of "La Nacion" newspaper. In this way, his pictures
get to the Argentine mass public for the first time.
Previously, they were published in a "short-life" magazine named "Magazine"
(by Editorial Perfil) together with Quino, Carlos Nine, 
R.Fontanarrosa, Tabaré, Rep, Carlos Ulanovsky and others, in 1985.

A German animation studio makes some animated tv shorts based
in his works. They are known in Argentina in 1988 on a local TV channel.
Argentinian people wonder:
"What is mordillo ?"

Books that compile his drawings, Puzzlespuzzles, teddy toys, posters,
congratulations cards, agendas, notebooks, book markers, keyrings of his
anonymous characters are more popular in Italy, Germany, France 
and England.

The book "Mordillo Football" that compiles his pictures about football, was launched
because of the World Cup in Spain in 1982. The prologue is written by Pelé
(a great fan of his cartoons).
Mordillo dedicates the book to his teachers:
To Eduardo Ferro and José Luis Salinas (see the beginning of this biography).
Mordillo never forgets his origin...

Nowadays, Mordillo admires Carlos Nine´s work,
Quino ("Mafalda"), Sempé ("Le Petit Nicolas"), Bill Waterson ("Calvin & Hobbes"),
and the recently dead Charles Schulz ("Snoopy"). 

Mordillo has got a great deal of fans who follow his style among the Argentine
cartoonists, many of them sprung up from
"Carlos Garaycochea Cartoons School". 
The cartoonist Matt (who also published in "La Nación" newspaper)
and Gelmi  have got a style very similar to Mordillo´s.

Once a year, Mordillo comes back to Buenos Aires to visit his Argentine family 

...and to watch some Ferro football match.