He was the third of four children of Felipe Antonio Agrelot Fittipaldi and Ana Luisa Vilá Cruz.

His paternal grandparents were born in Lauria, Italy and immigrated to Puerto Rico in 1892, two years before his father's birth.

During this period Agrelot developed his first comedic character, Torito Fuertes, a mischievous eight-year-old for a family comedy show sponsored by Borden, Inc. and its evaporated milk (the name Torito Fuertes was a pun on "strong calf", a desirable consequence of drinking good milk).

His most famous parody was that of Marlon Brando as Vito Corleone in The Godfather movie trilogy.

Agrelot appeared as Padre Ambrosio, a priest, in Jacobo Morales's Dios Los Cria II.