Rubens is the foster father of Ruby, who found her as a baby lying in a basket in the ocean, while fishing at the docks of Gunpowder Island. In result of this, Rubens retired Pirating specially to raise her.
Rubens is also seen to run a Tavern in Gunpowder Island, where he is usually in the kitchen cooking up meals for the other Pirates.
During Ruben's Pirating days, he was said to be a very well experienced swordsman. As claimed by Sharkbeard, calling Rubens his '' Best Swordsman! ''.
Rubens is seen to be pretty hot-headed and somewhat stubborn at times, but unlike the other Pirates, he is more caring, understanding and protective of others. Especially towards Ruby for the most-part.
- Rubens first appeared as a background character in the episode titled Dragonraiders, but didn't properly appear until the four part episode titled Ruby, Queen of the Seas. Where he was rolled as a main character for the story-plot.
- In certain episodes, Rubens can still be seen as a background character working for Sharkbeard alongside the other Pirates. But it is unclear if it is actually Rubens himself.
- While working in the Taven's kitchen, Rubens keeps his pirate hat next to a pile of plates on a shelf, which is located on top of the sink.
- At the end of Ruby, Queen of the Seas part four, Rubens mentions to Ruby that he actually enjoys cooking, and that the restaurant business was his dream career.
- Rubens has most likely passed down a centuries long family heirloom to Ruby, as mentioned in the episode titled Princess Ruby.
- In the episode titled The Pirate Virus, there is a scene where a hologram of a lost Pirate at sea is about to be attacked by a large sea-monster. The lost Pirate used in the hologram is seen to be Rubens, but it is not confirmed to actually be him.