Mortimer, who scored 34 goals in 199 appearances for the club, said: “It is with great pleasure I have agreed to become a patron for the Proud Valiants. Football is a game that should be loved by all. All supporters deserve to feel safe in a stadium and it is down to people in the game like myself to take a stand and say that any form of prejudice or hatred in the sport towards fans should not and will not be tolerated.
“I have respected the work that Charlton has done over the years - especially the work they did around kicking racism out of the game. It is great that with the Proud Valiants they are doing amazing work to kick homophobia from the sport. I look forward to supporting the Proud Valiants as they continue their sterling campaign.”
Proud Valiants chairperson Rob Harris said: “It is such an honour that such a respected person like Paul has agreed to come on board as one of our patrons. Not only has he worked tirelessly in kicking out prejudice in football, he also means something special to the club and its fans.
“His association makes a huge statement to football fans everywhere that anybody who wishes to support football should be welcomed and feel safe. We have already achieved great work with the club and Charlton Athletic Community Trust and look forward to continuing this with both groups and with Paul onside we will go on to achieve even more.