[1] Her television appearances include The Naked Civil Servant, Reilly, Ace of Spies, Mr. Palfrey of Westminster, Inspector Alleyn Mysteries, The House of Eliott, Boon, Lovejoy, Pie in the Sky, Holby City, New Tricks, Spooks and Rosemary & Thyme.

She performed in the plays of Peter Handke, Snoo Wilson, Arnold Wesker, Caryl Churchill, Howard Barker and in Mike Bartlett's My Child, directed by Sacha Wares at the Royal Court Theatre, London.

Chappell appeared in three of the Tribunal plays for Nicolas Kent, including The Colour of Justice (about the Stephen Lawrence Inquiry) at the Tricycle Theatre in Kilburn, London.

She played the human rights lawyer, Gareth Peirce, in Guantanamo, which subsequently transferred to London's West End and was also performed in the Raeburn Building (US Congress) in Washington.

From 1999 to 2000, Jan Chappell also appeared in three episodes of MJTV's original audio sci-fi CD series Soldiers of Love as Sharliken and Mom.