Last season, Fisher appeared in eight games and recorded four tackles.
Penn State is ranked third-best among five Big Ten teams in the top 25 of ESPN's preseason FPI rankings.
"I feel like I'm WR1. I can make plays on the field at any time possible. I did that for my team at Penn State, my guys can vouch for me there."
Feeney will help expand the Commanders' social media presence by creating content with an "all-access pass" to the team on and off the field.
Before his 11-year NFL career, Wisniewski graduated from Penn State's College of Education and taught a full year at State College Area High School.
Robinson, a former four-star recruit, appeared in all 13 games for the Terrapins this season as a true freshman.