The Verron were a species known to both Sarah Jane Smith and the Doctor. The Tenth Doctor once called the Verrons "an extremely generous race". (PROSE: Beautiful Chaos)
A Verron soothsayer once came to Earth and met Sarah Jane Smith. He gave her a puzzlebox and a warp star. (TV: Whatever Happened to Sarah Jane?, TV: Journey's End)
The Verron gave a medal to Donna Noble, which she gave to her grandfather. (PROSE: Beautiful Chaos)
Before Maria Jackson left Ealing she thought about all the aliens she had met, the Bane, the Slitheen, the Arcateenians, the Gorgons, the Graske and the Verrons. (PROSE: The Last Sontaran)