Del Marquis was born on August 31, 1979 in New York City, New York, USA as Derek Gruen.
Dancing with the Stars - Season 22
Dancing with the Stars - Season 19
Passions - Season 1
Later With Jools Holland - Season 64
Dancing with the Stars - Season 28
Dancing with the Stars - Season 1
Dancing with the Stars - Season 30
Later With Jools Holland - Season 62
Dancing with the Stars - Season 27
Dancing with the Stars - Season 31
Dancing with the Stars - Season 2
Later With Jools Holland - Season 65
Later With Jools Holland - Season 63
Dancing with the Stars - Season 16
Dancing with the Stars - Season 14
Dancing with the Stars - Season 33
Dancing with the Stars - Season 29
Dancing with the Stars - Season 23
Dancing with the Stars - Season 24
Dancing with the Stars - Season 25
Dancing with the Stars - Season 26
Dancing with the Stars - Season 32
Dancing with the Stars - Season 17
Passions - Season 2