|Relations||Gordon Tennyson (father), Betty Jean Tennyson (mother), Camille Mann (wife)|
|Group Affiliation(s)||The Plumbers, Tennyson Family|
|Gallery | Quotes | Appearances | Merchandise|
Appearing in "Big Fat Alien Wedding", Joel is Max Tennyson's nephew and a fellow member of The Plumbers. Having developed a relationship with an alien Sludgepuppy named Camille Mann, despite there being a war between the Plumbers and Sludgepuppies for years, Joel marries her in hopes of reaching a truce between the two sides. While the ceremony did not go as well as planned thanks to the bride's parents, the marriage was made successful.