David Rawle (born 16 October 2000) is an Irish actor from Carrigallen, County Leitrim.
In the series, which is set in the early 1990s, he had an imaginary friend called Seán; he is the youngest child of a family living in rural Boyle, County Roscommon.
His imagination comes into play both in his childish drawings, which come alive through animation, and in the ridiculous schemes he comes up with, against Seán's better judgement.
With Seán's help, Martin negotiates life as the youngest in a chaotic, scatter-brained Irish family.
[3] In January 2013, he (along with Moone Boy co-star Ian O'Reilly) appeared in Bressie's music video for his single Show Me Love.