Roberta Halton was the main Villainess in the episode "Who's Who part 4" on the PBS series Ghostwriter.
Roberta Halton was a stunt woman for Lana Barnes, a famous actress during the 1940s, who is getting an award for lifetime achievement. Jealous that she was not getting an award too. Roberta began stalking Stalking Barnes, sending her obscene fan mail, locking her in gargage, and sending her two roses, a live one and and a dead one. Robert revealed herself to Lana when she showed up at Lana's house pretending to be nice, then bragged about how she felt that she should get the award , not Lana. She knocked Lana out and took her red wig to impersonate Lana. Roberta showed up at the Hotel where Lana was getting award. She managed to fool everyone into thinking that she was Lana, except for the ghostwriter team. With Ghostwriter's help, the team was able to expose Robrerta Halton infront of the whole audience.