Adam Kendall
Played by: Linwood Boomer
Appearances: I'll Be Waving As You Drive Away, As Long As We're Together, ???????
Adam is the husband of Mary Ingalls. He taught her how to live a successful life when she first lost her sight.

Albert Ingalls
Played by: Matthew Laborteaux
Appearances: As Long As We're Together, ?????
Albert is a runaway who was taken in by the Ingalls family when they encountered him in Winoka.

Almanzo Wilder
Played by: Dean Butler
Appearances: Back To School, ??????
Almanzo moved to Walnut Grove along with his sister Eliza-Jane. He met and befriended a young Laura Ingalls, who would later become his wife.

Alyssa
Played by: Sidney Greenbush
Appearances: The Godsister
Alyssa is Carrie's imaginary friend who keeps her company while Charles is away.

Amelia Bevins
Played by: Julie Anne Haddock
Appearances: The Man Inside
Amelia was ashamed of her father John Bevins' size. He pretended to move away so that she would be happy. After John hurt himself, she realized that she shouldn't have been embarassed about him, and they reconciled.

Andy Garvey
Played by: Patrick Laborteaux
Appearances: ?????
Andy is the son of Alice and Jonathan Garvey. He is also a good friend of Laura and Albert Ingalls.

Annabelle
Played by: ?????
Appearances: Annabelle
Annabelle works as the fat lady in London's circus. Nels' is her brother, though he did not want to admit it at first.