Mutual Friends is a British comedy drama television series broadcast in six episodes on BBC One in from 26 August until 30 September 2008. The series starred Marc Warren, Alexander Armstrong, Keeley Hawes, Sarah Alexander, Claire Rushbrook, Emily Joyce, Naomi Bentley and Joshua Sarphie as a group of old friends whose lives are thrown into chaos when one of their group commits suicide.

Based on the paragraph above can we conclude that "Naomi Bentley appeared in one episode of Mutual Friends."?
It's impossible to say