Alexander

Alexander was the family pet of the Tucker Family and Nina's closest best friend. His breed appears to be a Great Pyrenees. He had a tendency to leap on Edward until Edward rages at him in the 2009 Anime. It is possible he did this to most visitors however as Nina scolded him for it in the 2003 Anime. In the manga and both Animes, Alexander and Nina grow very close to the Elric brothers, but their friendship was not able to last as Shou Tucker needed to present an astounding alchemic breakthrough to the military to make up for his past failures and avoid having his license revoked. Desperate, Tucker resorts to transmuting Alexander and Nina together to create a talking (yet imperfect) Chimera. When the Elric brothers discover this, Edward beats Shou to near death for having done such a cruel thing. With no idea on how to restore Nina and Alexander, the brothers leave the rest in the hands of the military, but the State Alchemist killer Scar soon arrives and kills Nina's father, and, noticing the pain the Nina/Alexander creature is in, kills it in an act of mercy in the Manga and 2009 Anime.

In the 2003 Anime, Brigadier General Basque Grand, who had been privy to Shou's secret experiments and known the truth about Sewing-Life's wife, collects the Nina/Alexander chimera for studying and creating chimera soldiers from Sewing-Life's research. The Nina/Alexander chimera escapes from custody with help from Edward, only to encounter Scar in an alley. Scar uses his alchemical tattoo to ultimately deconstruct Nina/Alexander before Edward can catch up. Rather than dying more-or-less peacefully at home, as in the manga, the 2003 anime has Nina/Alexander completely blown apart, leaving almost nothing but large bloodstains on the walls and street.

Later in the series, it becomes apparent that Tucker has survived in custody and made attempts to revive Nina by using her remains to clone her a body and filtering out the contamination from Alexander's DNA by siphoning it into his own body and becoming a grotesque Human Chimera himself. Tucker does not attempt to revive Alexander but calls out for him in his deranged state.