Morris Perry played Captain Dent in Colony in Space. An adventure with the 3rd Doctor and Jo Grant. He turned 95 on March 28th and was also in an award winning short film from 2004 called Letters of Service that I just finally got around to watching today! I had it for sometime after someone found it for me.
It really touched me. I have always wanted to send him a fan letter to say he was one of the best villains in a Doctor Who story that I had seen, and also his performance in Letters was just so touching as well.
For those on Facebook you can just search Letters of Service and watch it. It is only 13 minutes long so won't take much out of your day, but I hope it touches you as much as it did me.
I would post my video here, but I don't see the option or I am just backwards.