Abel Teller, the son of Jax Teller, was played by twin brothers Ryder and Evan Londo from 2011 until the 2014 series finale.
Trauma and chaos surrounded the character, which made their performances all the more impressive, and their parents were strict about which parts of the show the twins were allowed to watch.
"We let them see their scenes, and that's it," said their dad, Tom Londo, in a 2014 interview with People magazine.
The twins also shared the role of Gene Draper in the American period drama "Mad Men."