Bill Cwikowski has played seven different roles over the course of the series:
- Episode 2.18 Cradle to Grave (1992) - Hampton.
- Episode 5.4 Family Values (1994) - Painter.
- Episode 7.17 Showtime (1997) - Jerry Vance.
- Episode 10.18 Mega (2000) - Walter Levin.
- Episode 12.11 The Collar (2002) - Allan Boswell.
- Episode 15.22 Sport of Kings (2005) - Mike Tradewski.
- Episode 20.23 Rubber Room (2010) - Mr. Benson.
This episode appears to be based on the United Airlines Flight 629 bombing committed by Jack Gilbert Graham.