Ian Conningham

 played the Viking known as Chuckles in the Doctor Who television story The Girl Who Died. He also voiced a number of characters for Big Finish Productions.

TV

 * The Girl Who Died - Chuckles

The Diary of River Song

 * The Lady in the Lake - Kevin & Rindle

The Lost Stories

 * Nightmare Country - Maximov & Konis

The Third Doctor Adventures

 * Storm of the Horofax - Ronson & Lieutenant (mistakenly credited as Ian Cunningham on Big Finish's website)