  We study a set of Run-and-tumble particle (RTP) dynamics in two spatial
dimensions. In the first case of the orientation {\theta} of the particle can
assume a set of n possible discrete values while in the second case {\theta} is
a continuous variable. We calculate exactly the marginal position distributions
for n = 3,4 and the continuous case and show that in all the cases the RTP
shows a cross-over from a ballistic to diffusive regime. The ballistic regime
is a typical signature of the active nature of the systems and is characterized
by non-trivial position distributions which depends on the specific model. We
also show that, the signature of activity at long-times can be found in the
atypical fluctuations which we also characterize by computing the large
deviation functions explicitly.
