Yuri Lowenthal
Ben Tennyson (voice) (46 eps)
Greg Cipes
Kevin Levin (voice) (46 eps)
Dee Bradley Baker
Swampfire (voice) (46 eps)
Ashley Johnson
Gwen Tennyson (voice) (46 eps)
Paul Eiding
Max Tennyson (voice) (17 eps)
Wil Wheaton
Mike Morningstar / Darkstar (voice) (5 eps)
Zeno Robinson
Alan Albright (voice) (3 eps)
Tim Curry
Dr. Joseph Chadwick / Forever Knight #2 (voice) (1 eps)
Vicki Lewis
Serena (voice) (1 eps)
Kevin Conroy
Bellicus / Warrior #2 (voice) (1 eps)
Scott Menville
JT (voice) (1 eps)
Ioan Gruffudd
Devin Levin / Robot Guard (voice) (1 eps)