Captain Whisker is a fictional character in the Sonic the Hedgehog series who first appeared in Sonic Rush Adventure. He is a villainous robot pirate created by Dr. Eggman and Eggman Nega, whom he greatly resembles, and resides in Blaze the Cat's home dimension.
Whisker and his band of pirates (Johnny, Mini and Mum) are out to cause havoc on the seas, and intend to use an ancient artifact called The Jeweled Scepter to awaken an unnamed entity, and use its power to conquer. However, despite their claims, the pirates are not very intimidating, and are generally clownish and bumbling (possibly a reference to the comical villains from Adventures of Sonic the Hedgehog); he also always forgets about Sonic and others. Despite this, Whisker is an incredible force in battle: he can breathe fire, manifest saws and use shockwave-inducing ground pounds. He takes a special dislike of any characters who have pulled on his 'whiskers', at least when either Mini or Mum remind him. Captain Whisker was apparently destroyed during the Ghost Titan fight.
He was voiced by Lonnie Hirsch.