Patrick Labyorteaux

The Laborteaux (also spelled Labyorteaux) brothers are both adopted (I have no confirmation, but I believe they are also birth brothers).

They have appeared together, but also have extensive separate careers in television and films. Together they both acted in the Little House on the Prairie series: Patrick played Andy Garvey from 1977 to 1981 and Matthew played Albert Quinn Ingalls (an adopted character) from 1978 to 1982.

Patrick's credits also include: The Last Frontier, JAG, A Father for Charlie, Spider-Man, National Lampoon's Last Resort, Ninjas, Ghoulies, Ski School, Heathers, Summer School, Fresh Prince of Bel Air, Terminal Entry, The Comedy Company, Young Joe, the Forgotten Kennedy, Captains and the Kings, Mame, and Only with Married Men.

Matthew's other credits include: The Last to Go, Deadly Friend, Shattered Spirits, Whiz Kids, The Aliens Are Coming, Killing Stone, King of the Gypsies, A Circle of Children, Tarantulas: The Deadly Cargo, and A Woman under the Influence.

References

Trenta, Alex, et al. "Trek to the Stars: Little House Nitpickers Guild: General Nitpicks." Available at: [1]