Pellerin accepted a football scholarship from the University of Southern Mississippi. As a redshirt freshman, he appeared in 11 games as a backup defensive back, making 5 tackles, one forced fumble and one recovery. He transferred to Hampton University during his sophomore season. As a sophomore, he appeared in 11 games with seven starts, collecting 32 tackles, 2 tackles for loss, one interception, 8 pass breakups and one fumble recovery. As a junior, he started 10 out of 11 games, finishing the 2010 season ranked fourth in FCS and first in the MEAC with 16 total passes defended. He also posted 41 tackles and 2 interceptions. As a senior, he started 11 games, tying for first in the FCS and was first in the MEAC with 19 passes defended. He also had 51 tackles, 4.5 tackles for loss and tied for second in MEAC with four interceptions. He appeared in 44 games with 28 starts at Hampton, registering 124 tackles, 7 interceptions, 43 passes defensed and 36 pass break-ups. He graduated from Hampton in May 2011, receiving a B.S. degree in Finance. He was selected to participate in the 2012 East-West Shrine Game, and he was one of two players from historically black colleges invited to participate in the 2012 NFL Combine.
Professional career
Indianapolis Colts
Pellerin was signed as an undrafted free agent by the Indianapolis Colts after the 2012 NFL Draft on April 30. He was waived to make room for cornerback Korey Lindsey on May 31.
On December 11, 2012, he was signed to the Dallas Cowboys practice squad. In January 2013, he signed a futures contract. By having a 43.8% completion percentage allowed, Pellerin acquitted himself well during the preseason. He gave up a touchdown in the Hall of Fame game, allowed two completions on eight targets and registered his lone pass defensed of the pre-season against the Cincinnati Bengals in his four subsequent preseason appearances. He was released on August 31 and re-signed by the practice squad. He was promoted to the active roster in week nine, to provide depth after Morris Claiborne suffered a hamstring injury. He appeared in 2 games until being cut on November 21, with the expectation of his returning to the practice squad after clearing waivers.
Tennessee Titans
On November 22, 2013, he was claimed off waivers by the Tennessee Titans. He finished the remainder of the season on the active roster. He was released on August 25, 2014.
Dallas Cowboys (second stint)
On August 31, 2014, he was signed to the Cowboys' practice squad. On November 9, he was promoted to the active roster for three games due to injuries to cornerbacks Morris Claiborne and Tyler Patmon. He was released on December 8 and spent the balance of the season on the practice squad.
