In this first season he played three of his greatest parts--Shylock, Hamlet, and Falstaff. The first was selected for his _début_, contrary to his own inclination. Macklin's Shylock was the Shylock of all playgoers; but the difference between it and Henderson's attracted attention and audiences. Old Macklin himself praised his young rival's conception of the part with energetic liberality. "And yet, sir," said Henderson, "I have never had the advantage of seeing you in the character." "It is not necessary to tell me that, sir," said Macklin, with no conceited modesty. "I knew you had not, or you would have played it differently." Garrick also saw Henderson in the part, and remarked that Tubal was very creditably played indeed! It is said that Henderson, after delighting Garrick, when breakfasting with him in 1772, by imitations of Barry, Woodward, Love (whose single character of note was Falstaff), and some others, offended him by a close imitation of Garrick himself. Colman is reported to have been equally offended by an imitation of himself, at his own table, by Henderson, who did not, as Foote would have done, watch his host, and mimic him at other tables. Henderson seems to have been so little willing to offend, that in playing Bayes, he omitted the imitations of contemporary performers, by which all other actors of the parts had been wont to reap rich harvests of applause. Macklin said of him that the young man had learned a great deal; but what remained for him was to unlearn much of it, in order that he might learn to be an actor. In this oracular manner there was more kindness than Henderson met with from Foote, previous to his first season in London, and of which Genest has compiled this account:-- "Henderson, accompanied by two friends, waited on Foote, and was received with great civility. Foote's imagination was so lively, his conceptions were so rapid as well as so exuberant, that by a torrent of wit, humour, pleasantry, and satire, he kept the company for a considerable time in convulsions of laughter; however, Henderson's friends thought it, at last, time to stop the current of Foote's vivacities, by informing him of the reason of their visit, and Henderson was permitted to begin a speech in 'Hamlet;' but before he could finish it, Foote continually interrupted him by some unlucky joke or droll thought.... At the conclusion Henderson was, without interruption, allowed to speak Garrick's prologue on his return from the continent. This being no caricature, but a fair representation of Garrick's manner, did not make any impression on Foote; however, he paid the speaker a compliment on the goodness of his ear--dinner was now announced, and when Henderson took his leave, Foote whispered one of the company, _he would not do_.