- A Man with dog who watched in horror as David Platt plunged his car into Weatherfield Canal in October 2007
- A Drinker at The Flying Horse in January 2009
- Larry - a man who Jackie Dobbs spent the night with in February 2010
- Barry Hawkins, a thug hired by loan shark Rick Neelan, appearing between May and June 2012.
- Tiggsy, an accomplice of fugitive Rob Donovan, in May 2017.
Foster's other credits include Casualty, Doctors and Shameless.