The Carpenters Miracle (TV movie) (post-production)

2013 Tom, Dick & Harriet (TV movie)

2012 Goodnight for Justice: The Measure of a Man (TV movie)

2009 High Plains Invaders (TV movie) (as K. T. Donaldson)

2009 Fireball (TV movie) (as K.T. Donaldson)

2008 Search and Rescue (TV series)
– Just Say No (2008)

2008 jPod (TV series)
– The Hero's Journey (2008)

2007 Anna's Storm (TV movie)

2007 Falcon Beach (TV series)
– The Next Life (2007)
– Turn Card (2007)
– Tidal (2007)

2006 The Accidental Witness (TV movie)

2004 Pursued

2003 1-800-Missing (TV series)
– Insomnia (2003)

2003 Hack (TV series)
– Third Strike (2003)

2001 Providence (TV series)
– Best Man (2001)

2000-2001 Judging Amy (TV series)
– Romeo and Juliet Must Die -

Well, Maybe Just Juliet (2001)
– The Burden of Perspective (2000)
– Spoil the Child (2000)

2001 That's Life (TV series)
– No Good Deed (2001)

2000 D.C. (TV series)
– Guns and Roses (2000)

2000 The Jersey (TV series)
– Nick's a Chick (2000)

1999 Jack & Jill (TV series)

1998-1999 Profiler (TV series)
– Burnt Offerings (1999)
– The Monster Within (1998)

1998 Push (TV series)
– On Your Marks (1998)

1998 Magic Jersey (TV movie)

1997 Chicago Hope (TV series)
– Cabin Fever (1997)

1997 Sleepwalkers (TV series)
– Night Terrors (1997)

1996-1997 The Big Easy (TV series)
– A Perfect Day for Buffalo Fish (1997)
– Yellow Queen in the Fires of Hell (1997)
– Snake Dance (1996)
– The Love Doctor (1996)
– The Gambler (1996)
See all 6 episodes »

1997 Lawless (TV series)
– Episode #1.4 (1997)

1997 Dangerous Minds (TV series)
– A Different Light (1997)

1990-1996 ABC Afterschool Specials (TV series)
– Educating Mom (1996)
– The Perfect Date (1990) (as Kristoffer Siegel-Tabori)

1996 Dead of Night

1995 Fudge (TV series)
– Odd Man Out (1995)
– Play It Again, Dad (1995)
– Ducky Soup (1995)
– To Catch a Fudge (1995)

1995 Live Shot (TV series)

1995 Marker (TV series)
– Snowballs in Hawaii (1995)

1993 Picket Fences (TV series)
– Strangers (1993)

1992-1993 Jack's Place (TV series)
– Something Wonderful This Way Comes (1993)
– Forever and Ever (1993)
– I See Cupid, I See France (1992)

1992 Freshman Dorm (TV series)
– Sex, Truth and Theatre (1992)

1992 Bill & Ted's Excellent Adventures (TV series)
– Destiny Babes (1992)
– Hunka Hunka Bill and Ted (1992) (as Kristopher Tabori)

1992 Raven (TV series)

1991 Brooklyn Bridge (TV series)
– Old Fools (1991)

1991 Law & Order (TV series)
– Asylum (1991) (as Kristoffer Siegel-Tabori)

1991 Doogie Howser, M.D. (TV series)
– Planet of the Dateless (1991) (as Kristoffer Siegel-Tabori)

1984 Guilty or Innocent (TV series)
– No Means No (1984)