Harry Connick Jr.'s David Haden worked with the SVU squad in a few cases, but fans mostly remember him for the romantic relationship he developed with Detective Olivia Benson.

Source: https://www.cbr.com/law-order-svu-every-ada/

“I wanted to make him one of the original characters on SVU.

Source: https://www.alloaadvertiser.com/news/national/23332541.richard-belzer-stand-up-comedian-tv-detective-dies-aged-78/?ref=rss

Spoilers are incoming for the SVU Organized Crime crossover season finale, so you've been warned.

Source: https://comicbook.com/tv-shows/news/meaning-elliot-gift-olivia-law-and-order-svu-organized-crime-crossover-season-finale-compass/

The 21-year-old later got roles on shows such as Law and Order: SVU, Orange is the New Black, Nurse Jackie and Power.

Source: https://www.dailymail.co.uk/usshowbiz/article-12368843/The-celebrity-hustle-Brian-Cox-Lennox-Lewis-stars-raking-thousands-Cameo.html?ns_mchannel=rss&ns_campaign=1490&ito=1490