Mr White

Mr White was an Artificial Intelligance (AI) which was a possesion of Ruby White. Mr White's name was suggested by Clyde, following Ruby's last name and his simalarity with Mr Smith.

Biography
He was a pocket sized, white oval device with a blue screen. Mr. White presented himself as friendly and affable, quickly making friends with Sarah Jane Smith's computer, Mr Smith. Ruby White brought Mr. White with her when she assisted Sarah Jane and her group against the Dark Horde. She claimed to dredged the computer out of a swamp. It was Clyde Langer who suggested calling the computer "Mr White".

It was later revealed that Mr White was of Katesh origin, just like Ruby, who had created him. (SJA: Goodbye, Sarah Jane Smith)