on television, he appeared in two episodes of "the odd couple", once in a very early episode as an irate fellow juror infuriated with felix unger's pesty personality and four years later as a fellow subway train passenger. shortly after, martin co-starred with tony randall for two seasons in "the tony randall show" as court reporter jack terwilliger. throughout the run of this show, he had second billing only to randall himself. in 1979, he was cast as the title character in norman lear's final tv series concept, "". martin was cast to play a character similar to lear's earlier creation, "archie bunker", but played as a dog. only the pilot was completed. in 1990, he co-starred with valerie bertinelli and matthew perry in the cbs sitcom "sydney". in 1987, he appeared in the pilot episode of "21 jump street" as johnny depp's partner. in 1993, martin played the recurring role of "pete peters" on the don rickles sit-com "daddy dearest". although he was the second actor to portray jerry's dad, morty, in the 90s sitcom "seinfeld", he is the one most associated with the role, as the first actor, phil bruns, only appeared in one episode.