Bonnie Bevan is Elliot Bevan's mother. She desperately wanted him to marry a fellow Welsh girl named Rhiannon. When she came to visit, Elliot had paid Steph Dean to pose as his girlfriend so he could get out of his previous engagement. Bonnie did not approve, and finally Elliot told he didn't want to marry Rhiannon. Bonnie returned the next year when Elliot was in hospital for hypothermia. He'd been trying to track down his father, who he believed had been taken by a UFO some years earlier. Bonnie told him that his father had abandoned them and had wanted nothing to do with Elliot, even though she'd kept him up to date on Elliot for years. Elliot told her he wanted nothing more to do with her.
Bonnie returned in August 2009 when she confronted her ex-husband Gareth (who Leila Roy had recently tracked down) over abandoning the family. She informed Elliot that Gareth had had an affair when she was pregnant with him and he left to be with his mistress, who had also fallen pregnant with Elliot's half-brother Maynard Bevan.