Planer's guest appearances include programmes such as "The Bill", "French and Saunders", "Jonathan Creek", "Blackadder III", "The Last Detective", the "Paul Merton Show", the "Lenny Henry Show", "Death in Paradise (TV series)" and Gary Wilmot's "Songs from the Shows". He also guest-starred in an episode of "This is Jinsy" entitled "Nameworm", and in the BBC series "Boomers". Planer played Matt LeBlanc's lawyer in the TV series "Episodes".