Fluke and Rudder

Fluke and Rudder are 2 sea lions who are set to appear in the upcoming movie, Finding Dory. They are voiced by Idris Elba and Dominic West respectively.

Official Bio
"Fluke and Udder are a pair of lazy sea lions who were rehabilitated at the Marine Life Institute. Marlin and Nemo find them snoozing on a warm—and highly coveted—rock just outside the center. These sea lions really enjoy their down time and would rather not be bothered mid nap—but their bark is far worse than their bite."

Trivia

 * There were initially 3 sea lions, with the 3rd being called Gerald, before the directors decided to settle with two. It is possible that Michael Sheen, who casted in the film before being cut from it in late March 2016, was set to voice Gerald since Sheen and Fluke and Rudder's voice actors are all British.