[1] His parents were Arthur and Sylvia Lansberg, who had two sons, David and his older brother Joseph.
[1] Landsberg co-starred and co-wrote the 1986 action-comedy Detective School Dropouts with Lorin Dreyfuss.
[citation needed] He acted in the films Shoot the Moon with Albert Finney and Diane Keaton, Loose Shoes with Bill Murray, Love at First Bite with George Hamilton and Arte Johnson, and Skatetown, U.S.A. with Patrick Swayze and Dorothy Stratten.
Sharkey and the voice of Woody on Hanna-Barbera's animated series The Buford Files, as well as guest-starring roles on The Love Boat, Fantasy Island, Eight Is Enough, and Hart to Hart, as well as the voice for Mr. Griff in the Playhouse Disney series Stanley.
Landsberg was an executive producer and writer on such series as Cosby, Herman's Head, Daddy's Girls,[3] and Love Boat: The Next Wave.