Television Acting Roles

House on High Street
Episode unknown, 1959. NBC daytime TV serial.

The Survivors
Episode:Chapter 7. Aired: November 7, 1969 on ABC.

 Playing: Danny Goodson. Episode #3.14: Stolen on Demand. Aired: December 25, 1969 on NBC.

Playing: Larry Williams. Episode #5.17: Fatal Impostor. Aired: January 4, 
1970 on ABC.

Marcus Welby M.D
Playing: Michael Ambrose. Episode #1.16: Fun and Games and Michael Ambrose. 
Aired: January 13, 1970 on ABC.

Playing: Tim Richmond. Episode #2.17: Log 24: A Rare Occasion. Aired: 
February 14, 1970 on NBC.

Playing: Billy Burgess. Episode #11.20: The Law and Billy Burgess. Aired: 
February 15, 1970 on NBC.

Medical Centre
Playing: Rick Lambert. Episode #1.24: His Brother's Keeper. Aired: April 1, 
1970 on CBS

The Mod Squad
Playing: Brad. Episode #2.26: The Loser. Aired: April 7, 1970 on ABC

This is the life
Playing: Gene Sander. Episode #1921: In A Quiet Place. Aired: 1970

The Partridge Family
Playing: Keith Douglas Partridge. Aired: September
25, 1970 to September 7, 1974  on ABC.

Police Story
Playing: Officer Dan Shay. Episode: TV Movie - A Chance To Live. Aired: May 28,1978.

David Cassidy:Man Undercover
Playing: Officer Dan Shay. Aired: November 2, 1978 to January 18, 1979 on  NBC.

Fantasy Island (2 Episodes)
Playing: Danny Collier. Episode #3.15: Unholy Wedlock. Aired: January 12, 
1980 on ABC.

Fantasy Island
Playing: Jeremy Todd. Episode #6.11: The Songwriter. Aired: January 22, 1983 on ABC.

The Love Boat
Playing Ted Harmes. Episode # 4.4: The Oilman Cometh. Aired: November 8, 1980 on ABC.

Tales of the unexpected
Playing Twins. Episode #6.5: Heir Presumptious. Aired: May 1982.

Matt Houston
Playing: John Gordon Boyd. Episode #1.10: Joey's Here. Aired: December 5, 1983 on ABC.

Alfred Hitchcock Presents
Playing: Joey Mitchell. Episode #3.14: Career Move. Aired: May 22, 1988

The Flash
Playing: Sam Scudder, Mirror Master. Episode #1.18: Done With Mirrors. Aired: 
April 27, 1991 on CBS.

Playing: Himself. Episode #2.9: Rockamentary. Aired: November 18, 1991 on NBC.

Tom Arnold
Episode: The Naked Truth. Aired: April 1991 on HBO.

The Ben Siller Show
Playing: Himself. Episode #1.8: Greg Kinnear Segment. Aired: October 1992.

Ein Schlob Am Worthersee(A castle at Lake Worther)
Playing: A Rock Star, Patrick Riley. Soap Opera. Aired January 27, 1993 in 
Germany. David sung Treat Me Like You Used To.Sue played his wife. The show was filmed in July 1992 in Velden, Austria.

The John Larroquette Show
Playing: Jefferson Kelly. Episode #2.15: Wrestling Matches. Aired: January 31, 
1995 on NBC.

The Agency
Playing: Everett Price. Episode#2.19: War, Inc. Aired: October 16, 2003.

Malcom in the middle
Playing: Boon Vincent. Episode #5.1: Vegas. Aired: November 2, 2004 on NBC.

Kim Possible
Playing: Roland Pond (Voice). Episode #2.23: Oh Boyz. Aired: April 2, 2004.

Ruby and The Rockits
Playing: David Gallagher. "Ruby and the Rockits" is a half-hour comedy. Ruby is 
the teenage daughter of David Gallagher (David Cassidy) and niece of Patrick 
Gallagher (Patrick Cassidy), brothers and former teen idols in the band The 
Rockits. Since David continues to tour and pursue a life in music, he turns to 
Patrick to help raise Ruby, who joins the Gallagher clan consisting of Patrick, 
his wife and two sons. "Ruby" was written by former teen idol Shaun Cassidy 
(Patrick's brother and David's half-brother) and Ed Yeager.

Credits to the David Cassidy Downunder Fansite