2015

(1 epızod) - Jim Foster retinde

2006

(1 epızod) - Board Member #1 retinde

2004

(6 epızod) - Dr. Craig retinde

2003

(1 epızod)

2001

(1 epızod) - Richard Armus retinde

2000

(15 epızod) - Brad Lewis retinde

1999

(1 epızod) - Energy Secretary Gerald Deloit retinde

1998

(1 epızod) - Arnold Halliwell retinde

1997

(1 epızod) - Mr. Montgomery (segment "Justice is Served") retinde

1996

(1 epızod)

1989

(12 epızod) - David Martin retinde