  We analyze the effects of introducing vector fermions in the Higgs Triplet
Model. In this scenario, the model contains, in addition to the Standard Model
particle content, one triplet Higgs representation, and a variety of
vector-like fermion states, including singlet, doublet, and triplet states. We
investigate the electroweak precision variables and impose restrictions on
model parameters. We show that, for some representations, introducing vector
quarks significantly alters the constraints on the mass of the doubly charged
Higgs boson, bringing it in closer agreement with experimental constraints. We
also study the effects of introducing the vector-like fermions on neutral Higgs
phenomenology, in particular on the loop-dominated decays H -> gamma gamma and
H -> Z gamma, and the restrictions they impose on the parameter space.
